Similar to IFPs blockchain
chain was announced, which means that when the Huobi chain goes online in 2020, the Huobi token will be upgraded to a global token based on
Huobi chain
HT is applicable to: opening VIP, margin of certified merchants, airdrop of points exclusive activities, etc. HT will launch usdt, BTC and eth trading pairs online, and the platform will also buy back regularly.
GB / T 1 guidelines for standardization,
GB / T 96 large washer,
GB / T 228 tensile test of metallic materials at room temperature,
GB 2312 Chinese character coding character set for information interchange,
GB 18030 Chinese character coding character set for information technology,
in which t is the recommended standard, and t is the mandatory standard, This standard must be met in China.
This is the label of imported fruit
in the imported fruit area of supermarket, each fruit has a different code. This code is called PLU code, which is the abbreviation of price look-up codes, literally translated as "price look-up codes"
The purpose of the application of PLU code in foreign countries is to facilitate supermarkets to track and inquire the type, size and price of procts. Each fruit has a different PLU code, according to which you can know the relevant information of the fruit you boughtPLU code can also reflect the way of fruit planting. Due to the different agricultural proction methods, these 4-digit codes are preceded by a "prefix code" to distinguish planting methods
The prefix "9" indicates organic proction; The prefix "8" means that it has been genetically modified; The prefix "0" indicates that chemical fertilizer and pesticide may be used, and it is a fruit proced by conventional planting technologyPLU code is not compulsory. It is more common in the United States, Canada and other countries, but less common in Europe and Africa
In general, the four digit codes used in PLU start with 3 or 4, and the codes start from 4011 to 4959. Each group of four digit codes represents a combination of a specific variety, specification or grade and proction area, but the indivial code address does not have special significancefor example, 4133 stands for "apple, small Fuji, small Fuji, western region"; 4135 means "apple, small Fuji, big, western region". By the end of 1997, peib had issued 122 PLU codes for apple; 10 peaches; 14 plums; Six nectarines
Since 1998, peib began to use the four digit code with three prefixalthough it is a file system and a technology for storing data, IPFs is more exactly a transport protocol. IPFs regards HTTP as its adversary, and advocates that it should be benchmarked with HTTP, and HTTP (Hypertext Transfer Protocol) is the most commonly used transport protocol at present. If we want to find the content we want on the Internet, we have to input the URL, which usually starts with HTTP. HTTP transfers through domain name, IP and multiple central servers, and then uploads and downloads files. There is no substitute for HTTP. Now we all rely on HTTP to surf the Internet. However, HTTP also has some problems, such as low performance efficiency, excessive dependence on central server and backbone network, etc
compared with IPFs, it is a multi centralized solution. Content addressing is not through the domain name and IP, but through the unique hash key to find data. IPFs is a distributed file storage system. File data is not stored in a centralized server, but in all qualified computers on the network
of course, IPFs has many other features, and its level and application range are beyond the simple P2P download. In IPFs, there is an incentive mechanism -- filecoin. By contributing storage space and bandwidth, participants (miners) can get the reward of encrypted currency filecoin
the Xueshuo innovation blockchain Technology Workstation of Lianqiao ecation online is the only approved "blockchain Technology Specialty" pilot workstation of "smart learning workshop 2020 Xueshuo innovation workstation" launched by the school planning, construction and development center of the Ministry of ecation of China. Based on providing diversified growth paths for students, the professional station promotes the reform of the training mode of the combination of professional degree research, proction, learning and research, and constructs the applied and compound talent training system.
