During the collapse of the bubble, due to the periodic change of the bubble center pressure, the surrounding water flow point has a huge repeated impact, causing mechanical erosion...
On October 30th, the 2019 China International Agricultural Machinery Exhibition with the theme of “Mechanization and Agricultural and Rural Modernization” was grandly launched at t...
On October 30th, the 18th China International Coal Mining Technology Exchange and Equipment Exhibition hosted by China Coal Industry Association was held at the China International...
Recently, the Agricultural and Rural Affairs Department of Anhui Province carried out the second independent investment of agricultural machinery purchase subsidy products in 2019,...
In order to do a good job in the deep integration of the coal industry in the new era, promote the high-quality development of the coal industry, and summarize the exchange of indu...
