2. The classification is subdivided into civil buildings, general machinery, electronic instruments and electrical machinery, automobiles, railways, ships, steel, non-ferrous metals, chemicals, fibers, mines, pulp and paper making, management systems, ceramics, daily necessities, medical safety appliances, aviation, information technology and others *** 19. As of February 7th, 2007, 10, 124 JIS standards came into effect.
3. In other Japanese, the transliteration of JIS is ジス, which is formulated and reviewed by JISC and is one of the most important and authoritative national standards in Japan. According to Japan's Industrial Standardization Law, the JIS standard targets not only the special standards or technical specifications of agricultural and forestry products such as medicines, pesticides, fertilizers, silk and food, but also various industrial fields. Its contents include: product standards (product shape, size, quality, performance, etc. ), method standards (test, analysis, detection and measurement methods and operating standards, etc. ) and basic standards (terms, symbols, units, priority numbers, etc.). ). Majors include: construction, machinery, electric power, metallurgy, transportation, chemical industry, mining, textile, papermaking, medical equipment, ceramics and daily necessities, information technology, etc. Since 1990, the total number of JIS standards has remained at around 8200. Among them, there are about 4,000 product standards, 0/600 method standards and 2,800 basic standards. By the end of March 2006, * * * had 9728 JIS standards.
4. Edit the code corresponding to JIS in this paragraph: A- Civil Building; B- general machinery; Electrical and electronic; Type d car; Electronic railway; f-ship； G-beam; H- nonferrous metals; K- chemistry; L-shaped fiber; m-mine； Pulp and paper; Quality management system; Electric furnace industry; S-daily necessities; T- medical safety equipment; W- aviation; X- information processing; Z- others.