The plant is composed of multiple parts, and the most important part is the plant leaves. The leaves are the main place for photosynthesis of plants. The quality of the leaves will have a significant impact on the growth and germination of the plants, and the flowering results. T…

Pistons are key components of air compressors and have been widely used in the air compressor industry as the primary actuator for air compression. The working strength, stiffness and reliability of the piston are related to the operating life of the whole machine. Once the design deviati…

With the advancement of the mining face, the mining method of filling the goaf is gradually filled with filler. Sometimes the bracket is used in conjunction with the filling to maintain the gob. The purpose of filling the goaf is mainly to use the built-in filling body for ground pressure m…

Last Tuesday, in the Panyu District of Guangzhou, where the headquarters of Ciba's Chemicals and Textiles Division's Asia Pacific headquarters was located, the jubilant lion dance performed at the climax of the inauguration of its first textile chemicals R&D center in the Asia-Paci…

The basic situation The national standardization administrative department approved the establishment and authorization of technical organizations. The first committee was established in 1992 and is currently the third one. The existing 46 members, of which 1 chairman, vice chairman of the 2, S…

On the Huangpu River in 2010, there will be a special cruise ship that not only has a Chinese-made hull, but also a Chinese-designed “neural system” – recently, …

Feng Fei, Minister of Industry and Economic Research at the Development Research Center of the State Council, said that by 2025, China’s ordinary gasoline vehicles will only have 50% of the passenger vehicles, replacing them with advanced diesel vehicles, gas vehicles, and biofuel …