Illegal trading of mineral machinery futures
No illegal
in the bitcoin risk notice jointly issued by the people's Bank of China and other five ministries and commissions at the end of 2013, bitcoin is clearly defined as a special Internet commodity, and people can buy and sell it freely at their own risk. But it denies the monetary nature of bitcoin< The Article 143 of the general provisions of the civil law stipulates that "the civil legal act with the following conditions is valid:
(1) the actor has the corresponding capacity for civil conct< (2) the expression of intention is true< (3) it does not violate the mandatory provisions of laws and administrative regulations, public order and good customs. " The announcement of the seven ministries and commissions is neither a law nor an administrative regulation, and can not be used as a legal basis for judging whether a civil juristic act is valid or not; The law does not go back to the past. Therefore, the bitcoin transaction has legal effect, and the bitcoin obtained from the transaction is protected by law. Therefore, legal disputes arising from trading activities, including civil or criminal cases, should be subject to jurisdiction. Courts or public security organs can not refuse to accept bitcoin because they think bitcoin is not protected by law
extended information:
{rrrrrrr}
transaction mode
bitcoin is e-cash similar to e-mail, and both parties need "bitcoin wallet" similar to e-mail and "bitcoin address" similar to e-mail address. Just like sending and receiving e-mail, the remitter pays bitcoin directly to the other party through a computer or smart phone according to the recipient's address. The following table lists some websites that download bitcoin wallets and addresses for free
a bitcoin address is a string of about 33 characters long, consisting of letters and numbers, always starting with 1 or 3, such as & quot& quot; Bitcoin software can generate address automatically, and it does not need to exchange information online when generating address, so it can be offline [2]. More than 2 bitcoin addresses are available. Figuratively speaking, there are about two grains of sand in the world. If there is an earth in each grain of sand, then the total number of bitcoin addresses far exceeds the number of all the sand on all these "earths"
the bitcoin address and private key appear in pairs, and their relationship is just like the bank card number and password. A bitcoin address is like a bank card number, which records how much bitcoin you have on it. You can generate bitcoin address at will to store bitcoin. When each bitcoin address is generated, a corresponding private key of the address will be generated. This private key proves that you have ownership of the bitcoin at that address. We can simply understand the bitcoin address as the bank card number, and the private key of the address as the password of the corresponding bank card number. Only when you know the bank password can you use the money on the bank card number. Therefore, please keep your address and private key when using bitcoin wallet
after the transaction data of bitcoin is packaged into a "data block" or "block", the transaction is initially confirmed. When a block is linked to a previous block, the transaction is further confirmed. After six block confirmations in a row, the transaction was irreversibly confirmed. Bitcoin P2P stores all transaction history in a "blockchain.". The blockchain continues to extend, and once new blocks are added to the blockchain, they will not be removed. Blockchain is actually a distributed database composed of a group of scattered client nodes and all participants, which is a record of all bitcoin transaction history. Nakamoto predicts that when the amount of data increases, users hope that not all the data will be stored in their own nodes. In order to achieve this goal, he uses the hash function mechanism. In this way, the client will be able to automatically eliminate those parts that it will never use, such as some very early bitcoin transactions
1. Double layer reward network, or master node network technology
2. Instant payment function, timely arrival and low handling charge
dash, formerly known as dark coin, is a technical improvement on the basis of bitcoin. It has good anonymity and decentralization characteristics. It is the first digital currency with the purpose of protecting privacy. You can feel that it is liked by the black market when you listen to the name. Dash published a white paper in 2014, with a total circulation of 18.9 million. After the advent of dash, it has been regarded by netizens as the currency most able to realize Nakamoto's dream
{rrrrrrr}
extended materials:development prospects:
dash announced that it would cooperate with ALT thirty six, a blockchain payment supplier, and ALT thirty six is the supplier of * Da * ma payment processor, which means that dash can be used as its payment transaction consideration
so speaking of this, you should also be able to clearly understand the name of dark coin, and note that it is anonymous coin, which has advantages in many unspeakable transactions. At present, the cooperation is still in the testing stage, and it is estimated that it will have a good prospect after it is officially launched
20363;< br /> require a once%35;39;../ excel/PHPExcel.php&ཟ39;< br /> require once &35;39;../ excel/PHPExcel/Writer/Excel2007.php&35;39;< br /> $objPHPExcel = new PHPExcel();< br />
$objWriter = new PHPExcel writer Excel2007($objPHPExcel);// excel2007
$objActSheet = $objPHPExcel-> setActiveSheetIndex(0);< br /> $objActSheet =$objPHPExcel-> getActiveSheet();< br /> 20889;- 27599;- 21015;- 26631;- 39064;
$objActSheet-> setCellValue(35; 39; A1&35;39; &35; 39? [Laughs] br /> $objActSheet-> setCellValue(35; 39; B1&35;39; &35; 39? < br /> $objActSheet-> setCellValue(35; 39; C1&35;39;, &35; 39? ID&35;39;< br /> $objActSheet-> setCellValue(35; 39; D1&35;39;, &35; 39? < br /> $objActSheet-> setCellValue(35; 39; E1&35;39; &35; 39? *21496;* 35;39;< br /> $objActSheet-> setCellValue(35; 39; F1&35;39;, &35; 39? "36816;" 33829;"21830;&35;39;);< br /> $objActSheet-> setCellValue(35; 39; G1&35;39; &35; 39? "32467;" 31639;"21333;" 20215;&35; 39;);< br /> $objActSheet-> setCellValue(35; 39; H1&35;39; &35; 39? < br /> $objActSheet-> setCellValue(35; 39; I1&35;39; &35; 39? "35746;" 21333;"35831;" 27714;"35;39;);< br /> $objActSheet-> setCellValue(35; 39; J1&35;39; &35; 39? /24635;/21151; br /> $objActSheet-> setCellValue(35; 39; K1&35;39; &35; 39? "32467;" 31639;/25187;" br /> $objActSheet-> setCellValue(35; 39; L1&35;39; &35; 39? < br /> $objActSheet-> setCellValue(35; 39; M1&35;39; &35; 39? "32467;" 31639;"35;39;);< br /> $objActSheet-> setCellValue(35; 39; N1&35;39;, &35; 39? "28070;&"35; 39;);< br /> $objActSheet-> setCellValue(35; 39; O1&35;39;, &35; 39? "28070;" 29575;&"35;39;);< br />//24490;- 20889;- 25454 < br /> $i=2;< br /> foreach($list as $k=>$ v)
{
$objActSheet-> setCellValue(35; 39; D&35;39; i, $uidstr); //28192;- ID
$objActSheet-> setCellValue(35; 39; E&35;39; i, $v[35; 39; gname;35;39;]); //21496;- br /> $objActSheet-> setCellValue(35; 39; F&35;39; i, $yys); //36816;- 33829;- 21830< br /> $objActSheet-> setCellValue(35; 39; G&35;39; i, $v[35; 39; price and price; //32467;- 31639;- 21333;- 20215;
$objActSheet-> setCellValue(35; 39; H&35;39; i, $v[35; 39; rate&35;39;].&35; 39? 39;
$objActSheet-> setCellValue(35; 39; I i, $v[35; 39; money&35;39;]); //35746; 21333;= 35831;= 27714; br /> $objActSheet-> setCellValue(35; 39; J&35;39; i, $A); //24635;21151; 26465;-< br /> $objActSheet-> setCellValue(35; 39; K&35;39; i, $B); //32467;- 31639;/25187;(26465;)< br /> $objActSheet-> setCellValue(35; 39; L&35;39; i, $v[35; 39; money &35;39;]); //259101;-br /> $objActSheet-> setCellValue(35; 39; M&35;39; i, $v[35; 39; money &35;39;]); //32467;- 31639;- br /> $objActSheet-> setCellValue(35; 39; N&35;39; i, $v[35; 39; money; //28070;
$objActSheet-> setCellValue(35; 39; O i, $lirunlv);
$i+;< br />}//end foreach
Yes, but indivial gold extraction needs government approval
mining method:
according to investigation, jaw crusher is mostly used for coarse crushing in China's gold concentrators, standard cone crusher is used for medium crushing, and short head cone crusher and counter roller crusher are used for fine crushing. Medium and small gold concentrators mostly adopt two-stage one closed circuit crushing process, while large gold concentrators adopt three-stage one closed circuit crushing process
in order to improve the proction capacity of mineral processing and tap the potential of equipment, the crushing process was reformed to improve the utilization coefficient of the grinding machine. The main measures adopted were more crushing and less grinding to rece the particle size of the incoming grinding stone
{rrrrrrr}
extended data:
refractory gold resources can be roughly divided into three main types:
the first type is high arsenic, carbon and sulfur type gold ore. in this type, arsenic content is more than 3%, carbon content is 1-2%, sulfur content is 5-6%. With conventional cyanidation process, gold leaching rate is generally 20-50%, and a large amount of na2cn is consumed
the second type is the gold bearing ore in which gold is wrapped in gangue minerals and harmful impurities in micro fine and micro morphology. In this type, the content of metal sulfide is less, about 1-2%, and the proportion of fine gold embedded in gangue mineral crystals is 20-30%. The recovery rate of gold is very low by conventional cyanidation or flotation
the third type of gold ore is closely related to arsenic and sulfur, which is characterized by arsenic and sulfur as the main carrier minerals of gold and medium arsenic content. Single cyanidation process is adopted for this type of ore, and the gold leaching index is low. If the flotation method is used for enrichment, the gold can also obtain higher recovery index, but it is difficult to sell e to excessive arsenic content