What kind of digital currency does EMC issue
EMC is a decentralized token in Ethereum (blockchain), so the project side is mainly engaged in environmental monitoring, which is equivalent to letting everyone rent equipment to monitor environmental changes (here called mining). In this way, everyone's activities have helped and contributed to this matter. Accordingly, we need to receive feedback from the project. This feedback is given by the token of EMC. Is this token in the digital network world right? How can it become the money we can use? Then we have to buy it with RMB through others, and then realize it. How to let people buy it? There are many digital trading platforms that specialize in this business, such as currency, currency security, TCRs and so on. In this way, all your contributions to the global environment become your own assets. You can wait for it to appreciate like holding a stock; You can also sell, buy back and make a difference. You've made a contribution and you've got money, right. That must be great
Electromagnetic compatibility (EMC) refers to the ability of equipment or system to meet the requirements in its electromagnetic environment and not proce unbearable electromagnetic interference to any equipment in its environment
With the development of modern science and technology, the number and types of electrical and electronic equipment are increasing, which makes the electromagnetic environment increasingly complex. In this complex electromagnetic environment, how to rece the mutual electromagnetic disturbance and make all kinds of equipment work normally is an urgent problem to be solved; On the other hand, the bad electromagnetic environment will have a bad impact on human and ecology 
extended data:
EMC includes two requirements: on the one hand, it means that the electromagnetic interference generated by the equipment to the environment in the normal operation process cannot exceed a certain limit value; On the other hand, it means that the instrument has a certain degree of immunity to the electromagnetic interference existing in the environment, that is, electromagnetic sensitivity
in recent years, with the wide application of high sensitive electronic technology in medical electrical equipment and the rapid development of new communication technologies, such as personal communication system and cellular telephone, in various fields of social life; Medical electrical equipment not only emits electromagnetic energy, which affects the radio communication business and the work of other surrounding equipment, but also may be interfered by electromagnetic energy emission from surrounding equipment such as communication equipment in its application environment, causing harm to patients
filter connector is often of great help to the EMC performance of procts, but its cost is relatively high. Generally, when the problem can be solved by using on-board filtering, cable shielding and other methods, filter connector is not used. Filter connectors are usually used in some special situations, such as strict military standard requirements, small batch applications in harsh instrial environment and some special situations (such as structure size restrictions)
the research of EMC theory and technology in China started relatively late, and its development in the medical field only started in the 1990s. In 1995, China issued GB 9706.1-1995 General requirements for safety of medical electrical equipment. It was not until April 5, 2005 that the former State Food and Drug Administration issued the mandatory instry standard for medical devices YY0505-2005 Medical electrical equipment Part 1-2: General requirements for Safety - parallel standards: electromagnetic compatibility - Requirements and tests
References: EMC network
There's no difference, it's just a different statement
SF express is a Hong Kong funded express company mainly engaged in international and domestic express business, and SF express is a comprehensive domestic express logistics service provider. SF express establishes the ability to provide customers with integrated logistics solutions, and provides customers with a package of solutions such as warehouse management, sales forecast, big data analysis and financial management. SF is also an intelligent logistics operator with network scale. SF Express has a "Sky + ground + information network" three networks in one, can cover the domestic and foreign comprehensive logistics service network
extended data:
SF has always attached importance to and actively invested in the construction of various intelligent logistics facilities, covering big data and blockchain, AI intelligent decision-making, intelligent logistics map, automatic sorting equipment, intelligent hardware, logistics UAV, digital warehousing, intelligent packaging, information security and other aspects. The number of patent applications in the domestic express instry ranks first. Patents cover UAV, intelligent sorting, big data application, intelligent logistics network construction, automatic driving, packaging and preservation technology and other core and breakthrough fields of logistics. The application and breakthrough of technology strongly promote the operation advantages of corresponding logistics links
The meanings of special receiving and sending areas displayed by SF express include:
1. The delivery place is not within the scope of SF's self operated outlets, and there are generally cooperative agents in such areas (not regular outlets, just helping to receive and send express)
2. The express delivery in the area under traffic control needs to be taken by oneself or delivered after deregulation
3. For example, import and export processing zone
{rrrrrrr}
extended materials:
SF Express's service network
SF express covers domestic and foreign express networks. In addition to the company's consistent attention and investment in intelligent information network, it finally forms a comprehensive logistics service network of "Sky Net + ground net + information network" with three networks in one Scarcity further consolidates and expands SF's leading edge in the instry
In 2009, SF air became the first private cargo airline in China, and now it has developed into a cargo airline with the largest number of all cargo aircraft in China, with a complementary Skynet system of "all cargo aircraft + bulk flight + UAV". No matter from the total number of freighters, the number of routes or transportation capacity, they are in the lead in the instry After years of development, relying on the terminal network, transit distribution network, transportation team, distribution team, customer service team and other resources, SF has built a nationwide express delivery network and expanded to major countries in the world. Through the layout of intensive trunk and branch lines, a variety of tonnage of operating vehicles, and cooperation with high-speed rail resources, enrich the land transport network. The warehousing network covers the whole country, providing integrated warehousing and distribution services for e-commerce, food cold transportation, pharmaceutical cold transportation and other instries Through the comprehensive application of big data, blockchain, artificial intelligence, machine learning, and intelligent devices, SF has independently developed a complete set of intelligent network platform, including various core operation systems of SF logistics, SF map platform, big data platform, information security platform, and intelligent operation and maintenance management platform, creating a solid intelligent chassis, Drive business decisions and help upgrade smart logisticsNo way
because there are regulations for the examination from subject 1 to subject 4 of applying for motor vehicle driver's license, the applicant must go to the examination room to take the examination according to his appointment time. If he does not take the examination according to the time, he will abandon the examination
the subject one exam that the applicant has made an appointment for is in the morning, and he can't take the exam in the afternoon. If the applicant doesn't take the exam in the morning, it's abandoned, and he needs to make an appointment for the exam again
subject one, also known as subject one theory test and driver theory test, is a part of motor vehicle driver's license examination. According to the regulations on the application and use of motor vehicle driver's license, the examination contents include driving theory, road safety laws and regulations, local laws and regulations and other related knowledge. The examination form is computer examination, with 100 questions and 90 points or above
extended materials:
examination process of subject 1:
1. Follow the arrangement of the staff, and get my learning car files in the waiting room
2. Take and show your ID card and accept the examination of invigilator police
The mobile phone must be turned off when entering the examination area4. Do not make any noise when entering the examination area
It is not allowed to bring textbooks into the examination room6. After the examination, the ID card should be put away and stored, and the file should be handed over to the "certificate delivery window" in front of the examination room
The students who pass the examination sign at the exit of the examination room under the guidance of the staff and then leave the examination room8. Students who fail in the test can leave the test room and wait for the staff of their driving school to inform the make-up time
reference source: Network - subject 1