Shenzhen developed a large-scale domestic cloud computing system

Authorized by Shenzhen Science and Technology Innovation Committee, appraisal committee passed the appraisal of SD-30 system: SD-30 is the first set of cloud computing system based on domestic Loongson 3B1500 processor, which has reached the advanced level in China.

Yuchai Power Boosts New Energy Vehicle Industry


With the escalation of urban expansion and traffic congestion, the “Twelfth Five-Year Plan” of transportation clearly puts forward the demonstration project of “transit city”, and in combination with the needs of national low-carbon city construction, 30 cities are

How should the ball of different ball diameters match?

The reasonable ratio of the ball diameter has two aspects. One is to determine which balls of diameter are installed, and the other is to determine the proportion of balls of various diameters, and the actual mass. In theory, in order to achieve a good grinding effect, it should be ensured