What is the meaning of digital currency sustainability

1. The force between nucleus and electron is Coulomb force

in vacuum, the interaction force between two static point charges Q1 and Q2 is directly proportional to the proct of Q1 and Q2, and inversely proportional to the square of the distance r between them. The direction of the interaction force is along their line, and the same sign charges repel each other, while the different sign charges attract each other

the electric quantity is Q & # 39; The Coulomb force F of the electron with the action charge of E is f = Ke * q / R ^ 2, where R is the distance from the electron to the nucleus and K is the electrostatic constant

2. Odin chain calls itself an integral part of the internal ecological cycle. "The miner is the miner". There will be no miner as a middleman to earn the price difference and rece all unnecessary losses, thus eliminating the spillover of ecological value to the third party. Although bitcoin has a flaw, the flaw is that BTC's distribution mechanism causes the whole value to flow to a third party outside the ecology. In other words, the electricity charge and mine rent of bitcoin means that all these values are outside the ecology of bitcoin. This design flaw has been filled in Odin. And Odin is a deflation mechanism, the purchase of mining machinery needs to consume Odin, so it has higher room for growth. The distribution mechanism of Odin determines that its future growth is extremely superior.

4. Financial derivatives have existed for many centuries and constitute an important part of the global financial market. Derivatives are different in that even if the price of the underlying asset falls, traders can make a profit. This is different from ordinary currency trading. The reason for this is that in derivatives trading, you invest in the expectation of the asset rather than the asset itself. If you expect asset prices to fall, short; If you expect prices to rise, go long. The digital currency perpetual contract is a kind of financial derivatives

ordinary contract refers to an agreement to purchase a specific asset at an agreed price at an agreed time, while perpetual contract has no expiration date. In other words, if you hold a position (long or short) in the perpetual contract market, you can decide how long you want to hold the position

at present, 58coin is the best one to make perpetual contracts. Basically, all the perpetual contract codes in the Asia Pacific region come from the beta version of 58. In the aspect of perpetual contracts, 58coin has a high market share

perpetual contracts are useful in many ways. First of all, if you hold bitcoin and see that the price of bitcoin is falling, it's better to simply "short" in the bitcoin contract market to stabilize your portfolio than to bear losses and sell bitcoin, or to keep holding for the price to recover. In other words, you can use perpetual contracts to hedge your position in the spot market. Secondly, the contract market enables you to trade in all market conditions. You can make a profit in both bull and bear markets. Third, with leverage, you can significantly increase profits.

5. The full name of the usdt contract is the usdt perpetual contract. At present, the 58coin exchange is the most successful one in the market<

as a whole, usdt contracts operate under the framework of perpetual contracts, so like currency based contracts, it continues to maintain the design of index mechanism, non delivery, insurance fund replenishment, 2-100 times leverage, lower handling charges, lower maintenance margin ratio and no capital cost. However, it should be emphasized that except for index mechanism and non delivery, other contracts are unique to 58 perpetual contracts, Other places may not be designed like this. Usdt contracts use usdt as the common currency for pricing, trading and settlement. That is to say, it is no longer necessary to hold BTC to make BTC perpetual contracts. As long as you hold usdt, you can trade perpetual contracts in BTC, Eth and other currencies. In fact, this design simplifies the calculation method of profit and loss, which seems more intuitive. Another point is that based on the characteristics of usdt stable currency, it has the function of bear market hedging. If you are not used to the pricing method of currency based perpetual contract and have no time to focus on the ups and downs of digital currency, then usdt contract is very suitable for you.

6.

Perpetual contract is a new type of contract, which is evolved from the traditional futures contract

Compared with futures contract, perpetual contract has no maturity or settlement date, it is more like a margin spot market. Therefore, its trading price is close to the reference index price

because perpetual contracts have no delivery date, they are more suitable for long-term positions. That is to say, as long as the position opened by the user is forced to close as long as there is no burst, the position will never be closed passively. As long as your order is not withdrawn voluntarily, it will be kept forever until the transaction is concluded

extended data:

no delivery date means there is no mandatory constraint on the price of the perpetual contract, which will become a gambling tool. In order to avoid this situation, the perpetual contract has the following provisions:

1. At a certain time, when the futures price is greater than and significantly deviates from the spot price, the bull needs to pay the short side

2. At a certain time, when the futures price is less than or significantly deviates from the spot price, the short side needs to pay the multi-party

The greater the deviation, the higher the rate of payment

7. Contract trading is a kind of digital currency derivatives. Investors can get the income of the rise of digital currency price by buying long, and also get the income of the fall of digital currency price by selling short. Price close to the spot, the biggest feature is that there is no delivery date, you can hold positions indefinitely, you can also trade anytime and anywhere, there are 1-100 times to choose from. To put it simply, you can be long and short at the same time. If you think the price will fall, you can be short. If you think the price will rise, you can be short. You can make money in both directions.

8. Hello, it is recommended to use 58coin's perpetual contract. Click this invitation link to register with a discount. 58coin is the first currency based perpetual contract in the Asia Pacific region and the first usdt based perpetual contract in the world. It is not only the first one to go online, but also occupies 80% of the market position so far. You can register and experience it

usdt perpetual contract is a digital currency contract with usdt as the unit of valuation and settlement. At present, usdt perpetual contracts support the two-way trading of BTC / usdt, EOS / usdt and other contracts, and provide multiple leverage. The purpose is to allow high leverage to replicate the situation of the spot market. The contract will not be settled and can follow the reference index price of the target through the anchoring mechanism

as a pricing unit and settlement unit, usdt can trade BTC / usdt and other digital currency contracts without holding other digital currencies or only one digital currency of usdt, thus basically saying goodbye to the loss in the process of multi currency conversion. Of course, your profit is also settled in usdt. There will be only one asset in your usdt contract account< The main differences between perpetual contracts and term contracts are as follows:

- e date: each delivery contract has a fixed e date, and the delivery price is the index weighted average price one hour before delivery; The perpetual contract has no e delivery date and will never expire

- capital cost: since there is no e delivery date, perpetual contracts need to anchor the spot price through the "capital cost mechanism"

- mark price: mark price is used in perpetual contracts to calculate the unrealized profit and loss of users, effectively recing unnecessary frequent position explosion when the market fluctuates

- settlement every 8 hours: through settlement every 8 hours (04:00, 12:00 and 20:00 Hong Kong time), the unrealized profit and loss will be converted into realized profit and loss, so as to improve the flexibility of capital use

- ladder maintenance margin rate system: maintenance margin rate refers to the minimum margin rate required by the user to maintain the current position. When the margin rate is lower than the maintenance margin rate, it will trigger position explosion or forced partial rection. For users with different positions, the system of step maintenance margin rate is implemented, that is, the larger the user's position is, the higher the maintenance margin rate is, and the lower the user's optional maximum leverage ratio is

- compulsory partial closing: for users with large positions and at Level 3 or above, when the margin rate is lower than the current level maintenance margin rate, but higher than the minimum level maintenance margin rate, they will not directly blow out all their positions. The system will calculate the number of pieces needed to rece the position by two positions, and carry out partial rection. After the successful downshift, if the margin rate meets the requirements of the maintenance margin rate of the new gear, part of the position rection will stop; If it still does not meet the requirements of the margin rate of the new gear, it will continue to cycle part of the position rection process. In the warehouse by warehouse mode, in the process of compulsory partial rection, the position is frozen and cannot be operated; Under the full position mode, in the process of compulsory partial position rection, the currency account of perpetual contract is frozen and cannot be operated.

9. The contract not only depends on the direction, but also on the reasonable use of points and leverage. If you can't, you are welcome to invite investment in digital currency through u-coin.com, a private exchange and investment hotline. You are welcome to come to consult the satellite 1352 87490. Personal suggestions are for reference only! The market trend is ever-changing, the specific operation of cold peak will be given in the real offer. Digital currency headquarters direct recruitment! Integrity first, welcome to chat, welcome to chat
digital currency investment promotion can be described as a digital representation of the value of virtual assets, issued by private developers and priced in their own units. As long as both parties agree to use the currency, the currency can be acquired, stored and transferred through electronic media. Digital currency, cryptocurrency and virtual currency are usually regarded as different nomenclature of digital assets. However, there is a view that cryptocurrency and virtual currency are subsets of a wider range of digital currencies. Digital currency has existed for more than 20 years. It is estimated that there are more than 700 different forms of digital currency so far. The total value of digital currency estimated by the international monitoring fund in 2020 is 7 trillion, and its value is no longer negligible. But the fact is that it is developing into an alternative monitoring media at a much faster pace
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10. 1、 One and ones are both used in general, and ones is the plural of one, both of which are used to avoid repetition. Sometimes they are preceded by articles and adjectives. The indefinite articles a and an denote quantity "one", and a / an... One still denotes general. One is used to replace the singular number of countable nouns or a / an + adj + singular number of countable nouns, and ones is used to replace the plural number of countable nouns. When they are preceded by the definite article the, they both mean general, and the one and the ones are often modified by the attributive. They are related to the nouns mentioned above

1. I lost my pen yesterday. I will buy one. (one for a pen)

2. Your question is a difficult one. (one for question)

3. I do not like green apples. I like red ones. (one for apples)

4. The film is not so good as the one I saw yesterday, The knife and fork that one closes to your plate one a little bit bigger than the ones beside them, That can replace "the + uncountable noun" or "the + singular countable noun" ("the + singular countable noun" is more common). "That" and "the one" denote special reference, which are often modified by attributives. That can also be used as the subject of the whole sentence

1. The weather in Beijing is as good as that in Tianjin.

2. The book is not so interesting as that / the one I thought last week, I had a bad cold. That is why I did not come

I lost my pen last week but I found it yesterday< br />
——Who is knocking at the door

- it is me. (it stands for the person who is knocking at the door)

3

1) she saw a wall of water that was rapidly advancing towards her. She was so surprized that she could not move. She wanted to watch it. (it stands for a wall of water)

2) she is very stubbornthough she does not look it. (it stands for adjective stubborns)

3) you can come to visit us at any time you feel like it (it stands for come to visit us)

4< br />
1.I hate it in summer when it is hot.

2I would appreciate it very much if you would help me with my English.

3They will have it that they are correct.

4You may depend on it that they will support you.

5Could you tell me whose job you made it to keep the gate

(it stands for to keep the gate)

5< br />
1 Our team won the football match. Have you heard about it< They say he has left town, but I do not believe it< The houses of the rich are generally bigger than / those / the ones of the poor.

matching exercises:

1

-...... was in 1998 when he was in middle school; It B. this This C. this It D. that This

2.The Parkers bought a new house but………will need a lot of work before they moved in.NMET 2001

A. they B . it C. one D which

3.Meeting my uncle after all these years was an unforgettable moment， ……….I will always treasure.NMET2002

A. that B. one C. it D. what

4.——Why do not we take a little break< br />
——Did not we just have……….. NMET2000

A. it B that C. one D. this

5.Few pleasure can equal…………of a cold drink on a hot day.NMET1999

A. some B. any C. that D. those

6.I hope there are enough glasses for each quest to have……… ..

A it B .those C. them D. one

7.I hate……….when people talk with their mouths full.NMET1998

A. it B. that C .these D. them

8.——Are you satisfied with her answer< br />
——Not at all. It could not be……….

A. a worse one B. a better one C. the worse one D. the better one

9.-Do you like _ here?< br />
-Oh, yes. The air, the weather, the way of life. Everything is so nice.(NMET2004)

A. this B. these C. that D. it

10.How do you find………to learn English < br />
A. that B. this C. / D. it

11.Jake passed all his examinations………. pleased his parents.

A. who B. it C. which D. all of them

12.The shirt is too small， I am afraid. Would you please show me……..one < br />
A. bigger B. the bigger C. a bigger D. a biggest

13.——Did you find your pen just now< br />
——No，I did not find…….，but I have bought……..

A. one it B it one C. it that D it it

14.——Who are singing ?< br />
——……. the children .

A .That’s B. This is C. It’s D. You are

15. Our teacher had told him again and again not to read such books, but _ didn’t help .

A. he B. they C. she D .it

16.The articles made of leather cost much more than ……..made of plastic.

A. that B. those C. it D. ones

17. I was disappointed with the film. I had expected……….to be much better.

A. that B .this C. one D. it

18. Is this problem……..the teacher explained last weak?< br />
A . the one B. one C. which D. that

19. No bread eaten by the man is so sweat as ……..earned by his own labour.

A. one B. that C. what D. those

20.We will go for a walk if you feel like………..

A. that B. the one C. it D. those

21. We would much appreciate………if you could do us the favour.

A. that B. you C. yourself D. it

22.Do not start a book unless you can see from the first pages that it is…….you can easily read and understand.

A. that B. one C. the one D. a o ne

23.Mr. Smith gave the tickets for tomorrows concert to all the workers except……..who had already taken them.

A. the others B. ones C. some D. the ones

24.Now that the new desks have been bought,………will you do with these old………?< br />
A. how; ones B. what; those C. how; those D. what; ones

25.I like…….in the autumn when the weather is clear and bright.

A. this B. that C. one D. it

26----Do you have my pen, Mary?< br />
----Yes, I have _____ right here.

.A. one B. it C. this D. that

27.A bridge made of stone is much stronger than ______ made of wood.

A. one B. that C. it D. the one

28.----I should like to have a try.

-----You will find ________ quite interesting.

A. one B. it C. the one D. which

29.We have no time to do the job. _______ is our trouble.

A. Which B. It C. That D. The one

30. -----Mary went to college last year.

-----I have never heard of _________.< br />
A. it B. her C. which D. the one

1.A2.B3.B4.C5.C6.D7.A8.A9D10.D11.B12.C13.B14C15.D16.B17.D18.A19.B20.C21.D22