According to the 2017 sales figures announced by the CLUCC, the cumulative sales volume of the domestic passenger car market last year was 11.659 million units, which was a 3.4% year-on-year decline. This was the first time in recent years, and the market share has historically fallen below the 50 ....

University of Technology)//Optical Technology. One 2001,27(4). 348-349, 351 error analysis of the mathematical model of the intersection of double CCD coordinates, and proposed the conditions of the optimal structure parameters. Through the method of computer simulation, the structural parameters ....

The Spring Festival is not only a seven-day holiday, but it is also a good time for family reunion. Regardless of the distance of the road, most Chinese people are more willing to go home for the New Year. As a free period of rare domestic high speed, coupled with the Spring Festival train ticket ....

1. Quality control of raw materials for cattle and mutton: Raw materials for cattle and mutton must not contain other animal-derived ingredients, and must be inspected by animal epidemic prevention departments and meet the relevant requirements of GB/T 17238, GB/T 9961, and 235 announcements. 2. H ....

From December 18th to 19th, the post scientist of the processing technology research department of the algae industry technology system and the researcher of the Fisheries Machinery Instrument Research Institute of the Chinese Academy of Fishery Sciences Jiang Tao, a four-member director, accompan ....

Over the years, China's annual output of steel at a speed of one hundred million tons every two years soared: in 2005 the annual output of 350 million tons, to 800 million tons in 2014 became, much of the new steel plant in the south of Yanshan Tangshan area. Tens of millions of tons of ore ar ....

The flotation method of flotation machine is widely used in mineral processing applications. According to different minerals, different flotation, flotation structure and flotation process of flotation machine can be changed according to different industries, through a large number of technologies. ....