BCD price BTC
The concept of 21 million
bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's idea, open source software was designed and released, and P2P network was built on it. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system
bitcoin is not issued in unlimited quantity, which is different from most currencies. Bitcoin does not rely on a specific currency issuer. But according to the specific algorithm, through a large number of calculations. Its circulation is controlled by software algorithms. The total number is 21 million
extended materials:
generation principle
starting from the essence of bitcoin, the essence of bitcoin is actually the special solution generated by a bunch of complex algorithms. A special solution is one of the infinite (in fact, bitcoin is finite) solutions that can be obtained from the equations. Every particular solution can solve the equation and is unique[ 10] In the metaphor of RMB, bitcoin is the serial number of RMB. If you know the serial number of a note, you have the note. The process of mining is to constantly seek the special solution of this equation system through a huge amount of calculation. This equation system is designed to have only 21 million special solutions, so the upper limit of bitcoin is 21 million
to mine bitcoin, you can download the special bitcoin computing tools, register various cooperation websites, fill the registered user name and password into the computing program, and then click the operation to officially start. After completing the installation of bitcoin client, you can directly obtain a bitcoin address. When others pay, you only need to paste the address to others, and you can pay through the same client. After installing the bitcoin client, it will distribute a private key and a public key. You need to back up your wallet data containing your private key to ensure that your property is not lost. Unfortunately, if the hard disk is completely formatted, personal bitcoin will be completely lost
according to the currency conversion ratio on January 3, 2020, one bitcoin = RMB 47000
compared with fiat money, bitcoin has no centralized issuer. It is generated by the calculation of network nodes. Anyone can participate in the proction of bitcoin, and it can circulate all over the world. It can be bought and sold on any computer connected to the Internet. No matter where they are, anyone can dig, buy, sell or receive bitcoin, And in the transaction process, foreigners can not identify the user's identity information
the global financial crisis broke out in 2008. On November 1, 2008, a person who called himself Satoshi Nakamoto published bitcoin white paper "bitcoin: a peer-to-peer e-cash system" on the P2P foundation website, stating a new idea for e-money bitcoin came out. On January 3, 2009, bitcoin Genesis block was born
whenever bitcoin comes into the view of mainstream media, mainstream media always ask some mainstream economists to analyze bitcoin. Earlier, these analyses focused on whether bitcoin was a scam. Now the analysis focuses on whether bitcoin can become the mainstream currency in the future. The focus of the debate is often on the deflationary nature of bitcoin
extended data:
currency features:
Decentralization: bitcoin is the first distributed virtual currency, and the whole network is composed of users without a central bank. Decentralization is the guarantee of bitcoin's security and freedom
Global Circulation: bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin
exclusive ownership: private key is required to manipulate bitcoin, which can be stored in any storage medium in isolation. No one can get it except the user himself
low transaction cost: bitcoin can be remitted free of charge, but a transaction fee of about 1 bitfen will be charged for each transaction to ensure faster transaction execution
Refrigerator is a household appliance that we often use, almost every family has it in our daily life. In winter, the function of refrigerator is not so big, so should the power of refrigerator be turned off
Figure (3)4. In the case of not using the refrigerator, set the temperature of the refrigerator at zero or the maximum value, which can extend the life of the refrigerator
5. The best way is to turn on the power once a month, and the compressor in the refrigerator is running, which can also extend the service life of the refrigerator
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but there are also cheap ones. Xinfei's more than 2000 can do it!
I recommend Meiling. I just bought this one. It feels good. It's been a refrigerator for decades
the refrigerator selection mainly depends on the size of the freezer and energy consumption (the one with more power consumption is not necessarily bad, but the one with fast freezing speed is certain). It depends on whether the refrigerator door is opened with a little force, which determines the sealing of the refrigerator. Of course, a price of a goods, household buy bigger, brand, perfect after-sales.
With the development of technology, refrigerators are becoming more and more popular. Most families are equipped with refrigerators. Now there are so many household refrigerators, which brand is better, and which style of this brand is better. These are the problems that we consumers need to consider. There are so many refrigerator manufacturers, how can we choose refrigerators? And what about the price of the refrigerator of Sony? The following will be announced one by one for you, please let Xiaobian say how to buy refrigerators
what factors should be considered in purchasing refrigerators 2. Humanized refrigerator design refrigerator design, technology and raw materials are also important factors for us to compare refrigerator brands when we purchase refrigerators. The design should be humanized and meet the needs of life. The quality of refrigerators is often guaranteed by manufacturers with high technology. In material selection, pure steel pipe, imported coated steel plate and other high-quality components are the index of refrigeration system life 3. Reasonable low energy consumption when thinking about purchasing refrigerators, there is another problem to think about, that is, the electricity charge that will be generated in the process of using refrigerators in the future, which is not a small but easily ignored expense. If it's not easy to buy the first refrigerator with high power consumption, the electricity charge will be very high after using it every day. Even though it was very cheap at the beginning, it hasn't been used for a long time and the low-energy refrigerators that were purchased at a high price at the beginning have not been used. With consumers shopping more and more rational, the energy consumption of refrigerators has aroused widespread concern, and many manufacturers have launched energy-saving refrigerators. But it is not that the lower the energy consumption, the better. In order to achieve the purpose of energy saving, some manufacturers only add insulation layer or adopt new technology, but such energy saving is at the cost of improving the price, and the performance will also be affected 4. The performance of refrigerator is very important preservation performance. At present, the best preservation technology is computer temperature control. The whole process uses computer to complete double temperature and double control, which really ensures that the refrigerator always adheres to a constant low temperature environment and insists on the novelty and nutrition of food. Structure and design, reasonable structure and design can greatly improve the performance of the refrigerator, such as the flat back radiator on both sides can improve the heat dissipation efficiency, maintain the radiator, prevent noise and st, and save space. The transparent drawer can be easily accessed, which can rece the switching times, save electricity and prevent bacteria. Detachable door seal and other parts, easy to clean. These special designs add a lot to your refrigerator OK, after seeing how to choose a refrigerator, let's take a look at the price list of Sony refrigerator price list of Xinli refrigerator: from the above, we can know that in fact, Xinli refrigerator is different from our daily household appliance refrigerator, which is not used to store vegetables, meat and milk, In fact, Xinli refrigerator is specially used for storing tea and red wine. That is to say, this is a small refrigerator display freezer, which can be seen in general shopping malls. In addition, the hotel will also store the wine ordered by the guests, or the tea left by the guests, which will be stored in the refrigerator
newli sc-110l
￥ 1190.00 Xinli vertical mini refrigerator
newli sc-50l
￥ 560.00 Xinli transparent vertical mini refrigerator
newli bcd-93d ￥ 735.00 Xinli energy saving mini refrigerator
newli dc-88
￥ 790.00 Xinli vertical mini refrigerator
Newli bc-50
￥ 570.00 newli sc-75l
￥ 899.00
original price: 6302 ordinary member price: 6138 club member price view
total effective volume (L): 258 freezer effective volume (L): 148
freezer effective volume (L): 70 + 40 power consumption (kW. H / 24h): 0.68
purchase collection comparison category: 08 Olympic light series model: bcd-278wbcs TX sales status: sales status query
original price: 6647 ordinary member price: 6474 club member price view
total effective volume (L): 278 refrigerator effective volume (L): 168
freezer effective volume (L): 70 + 40 power consumption (kW. H / 24h): 0.69
purchase collection comparison category: ultra thin mirror ice Box model: bcd-552wyj Z sales status: sales status query
original price: 28600 ordinary member price: 26920 club member price view
total effective volume (L): 500 refrigerator effective volume (L): 326
freezer effective volume (L): 174 power consumption (kW. H / 24h): 1.18
purchase collection comparison category: ultra thin mirror refrigerator model: BCD -551wyj l sales status: sales status query
original price: 23800 ordinary member price: 22600 club member price view
total effective volume (L): 520 freezer effective volume (L): 325
freezer effective volume (L): 195 power consumption (kW. H / 24h): 0.98
purchase collection comparison category: ultra thin mirror refrigerator model: bcd-550wyj h sales Status: sales status query
original price: 21600 ordinary member price: 20520 club member price view
total effective volume (L): 520 freezer effective volume (L): 325
freezer effective volume (L): 195 power consumption (kW. H / 24h): 0.98
purchase collection comparison category: French opposite door refrigerator model: bcd-588ws sales status: Sales Status query
original price: 15600 ordinary member price: 14520 club member price view
total effective volume (L): 580 effective volume of freezer (L): 400
effective volume of freezer (L): 180 power consumption (kW. H / 24h): 1.38
purchase collection comparison category: bar series model: bcd-551wf sales status: sales status query
Original price: 9800 ordinary member price: 9200 club member price view
total effective volume (L): 520 freezer effective volume (L): 325
freezer effective volume (L): 195 power consumption (kW. H / 24h): 1.56
purchase collection comparison category: a + + energy saving model number: bcd-192ka sales status: sales status query
original price: 2580 ordinary member price : 2502 club member price view
total effective volume (L): 192 freezer effective volume (L): 127
freezer effective volume (L): 65 power consumption (kW. H / 24h): 0.44
purchase collection comparison category: a + + energy saving model: bcd-172ka sales status: sales status query
original price: 2480 ordinary member price: 2402 club member price View
total effective volume (L): 172 freezer effective volume (L): 107
freezer effective volume (L): 65 power consumption (kW. H / 24h): 0.42
purchase collection comparison category: a + + energy saving model: bcd-215kc zv sales status: sales status query
original price: 3280 ordinary member price: 3142 club member price view
total effective Volume (L): 215 freezer effective volume (L): 137
freezer effective volume (L): 78 power consumption (kW. H / 24h): 0.39
purchase collection comparison category: a + + energy saving model: bcd-215kc LV sales status: sales status query
original price: 3280 ordinary member price: 3142 club member price view
total effective volume (L): 215 freezer available Effective volume (L): 137
freezer effective volume (L): 78 power consumption (kW. H / 24h): 0.39
purchase collection comparison category: a + + energy saving model: bcd-215kc JV sales status: sales status query
original price: 3280 ordinary member price: 3142 club member price view
total effective volume (L): 215 freezer effective volume (L): 137
< br />Freezer effective volume (L): 78 power consumption (kW. H / 24h): 0.39
purchase collection comparison category: a + + energy saving model: bcd-195kc zv sales status: sales status query
original price: 3080 ordinary member price: 2942 club member price view
total effective volume (L): 195 freezer effective volume (L): 130
freezer effective volume (L) : 65 power consumption (kW. H / 24h): 0.39
purchase collection comparison category: French double door refrigerator model: bcd-586ws sales status: sales status query
original price: 19600 ordinary member price: 18520 club member price view
total effective volume (L): 586 refrigerator effective volume (L): 400
freezer effective volume (L): 186 power consumption Purchase and collection comparison category: French refrigerator model: bcd-586wb sales status: sales status query
original price: 18600 ordinary member price: 17520 club member price view
total effective volume (L): 586 refrigerator effective volume (L): 400
freezer effective volume (L): 186 power consumption (kW. H / 24h): 1.57
purchase collection comparison category: a + + energy saving model: bcd-212ka sales status: sales status query
original price: 2880 ordinary member price: 2742 club member price view
total effective volume (L): 212 freezer effective volume (L): 134
freezer effective volume (L): 78 power consumption (kW. H / 24h): 0.46
purchase collection ratio Comparison category: a + + energy saving model: bcd-212dc sales status: sales status query
original price: 3380 ordinary member price: 3242 club member price view
total effective volume (L): 212 effective volume of freezer (L): 134
effective volume of freezer (L): 78 power consumption (kW. H / 24h): 0.37
purchase collection comparison category: Caijing three door series Column model: bcd-228wbcs ha sales status: sales status query
original price: 5780 ordinary member price: 5480 club member price view
total effective volume (L): 228 freezer effective volume (L): 163
freezer effective volume (L): 65 power consumption (kW. H / 24h): 0.59
purchase collection comparison category: space Prince series model: BCD- 239sk DC sales status: sales status query
original price: 4280 ordinary member price: 4046 club member price view
total effective volume (L): 239 freezer effective volume (L): 167
freezer effective volume (L): 72 power consumption (kW. H / 24h): 0.66
purchase collection comparison category: space Prince series model: bcd-219sk DC sales status Status: sales status query
original price: 4080 ordinary member price: 3846 club member price view
total effective volume (L): 219 refrigerator effective volume (L): 147
freezer effective volume (L): 72 power consumption (kW. H / 24h): 0.65
purchase collection comparison
category: bar series model: bcd-551we sales status: sales status query Inquiry
original price: 14600 ordinary member price: 13520 club member price view
total effective volume (L): 521 freezer effective volume (L): 341
freezer effective volume (L): 180 power consumption (kW. H / 24h): 1.48
purchase collection comparison category: Six door series model: bcd-301w sales status: sales status inquiry
original price: 9 800 ordinary member price: 9308 club member price view
total effective volume (L): 301 freezer effective volume (L): 176 + 56
freezer effective volume (L): 69 power consumption (kW. H / 24h): 0.95
purchase collection comparison category: Caijing Sanmen series model: bcd-248wbcs La sales status: sales status query
original price: 6180 ordinary meeting Member price: 5880 club member price view
total effective volume (L): 248 freezer effective volume (L): 183
freezer effective volume (L): 65 power consumption (kW. H / 24h): 0.61
purchase collection comparison category: Caijing Sanmen series model: bcd-248wbcs JA sales status: sales status query
original price: 6180 ordinary member price: 5880 Club member price view
total effective volume (L): 248 effective volume of freezer (L): 183
effective volume of freezer (L): 65 power consumption (kW. H / 24h): 0.61
purchase collection comparison category: Caijing Sanmen series model: bcd-248wbcs CA sales status: sales status query
original price: 6180 ordinary member price: 5880 club member price Lattice view
total effective volume (L): 248 effective volume of freezer (L): 183
effective volume of freezer (L): 65 power consumption (kW. H / 24h): 0.61
purchase collection comparison category: Caijing Prince series model: bcd-218c ZB sales status: sales status query
original price: 3880 ordinary member price: 3700 club member price view
< br/ >Total effective volume (L): 218 freezer effective volume (L): 170
freezer effective volume (L): 48 power consumption (kW. H / 24h): 0.65
purchase collection comparison category: Caijing Prince series model: bcd-218c HB sales status: sales status query
original price: 3880 ordinary member price: 3700 club member price view
total effective volume (L) : 218 freezer effective volume (L): 170
freezer effective volume (L): 48 power consumption (kW. H / 24h): 0.65
purchase collection comparison category: Caijing Sanmen series model: bcd-248wbcs ha sales status: sales status query
original price: 6180 ordinary member price: 5880 club member price view
total effective volume (L): 248 freezer Effective volume (L): 183
freezer effective volume (L): 65 power consumption (kW. H / 24h): 0.61
purchase collection comparison category: bar and ice series model: bcd-552we sales status: sales status query
original price: 18600 ordinary member price: 17520 club member price view
total effective volume (L): 521 freezer effective volume (L) : 341
freezer effective volume (L): 180 power consumption (kW. H / 24h): 1.48
purchase collection comparison category: Caijing Sanmen series model: bcd-248wbcs Za sales status: sales status query
Original price: 6180 ordinary member price: 5880 club member price view
total effective volume (L): 248 freezer effective volume (L): 183
< br />Freezer effective volume (L): 65 power consumption (kW. H / 24h): 0.61
purchase collection comparison category: Caijing Sanmen series model: bcd-228wbcs CA sales status: sales status query
original price: 5780 ordinary member price: 5480 club member price view
total effective volume (L): 228 freezer effective volume (L): 163
freezer effective volume Volume (L): 65 power consumption (kW. H / 24h): 0.59
purchase collection comparison category: Caijing Prince series model: bcd-218c LB sales status: sales status query
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