In the winter and spring, the precipitation in the spring corn area of ​​northern China continued to be less, the area of ​​dry and frozen areas was large, the water supply from rivers and reservoirs was insufficient, and the soil bottom was poor. In response to the prob
Read moreThe main components: The paint is made of epoxy resin, glass phosphorus film, pigments, fillers, plasticizers as a group, curing agent for the other component and prepared into a separate coating. Uses: Suitable for steel equipment surface, pipelines, storage tanks, cement surface to prev
Read moreWork before broadcasting 1. Select varieties that are suitable for maturity and excellent resistance. In the main producing areas of the western Liaoning, Liaobei and Liaozhong provinces, the varieties with the growth period of 125-132 days are selected; the original planting varieties in the Liao
Read moreWhen the concrete pump works under the rated delivery capacity, the flow velocity of concrete in the pipeline decreases with the decrease of diameter, and the pumping resistance increases. Therefore, the choice of different diameter of the pipeline will affect the pumping resistance. See the relatio
Read moreThe pneumatic actuator converts the pressure energy of the compressed gas into a pneumatic actuator of mechanical energy. The cylinder has two types of reciprocating linear motion and reciprocating swing (see figure). The cylinders that make reciprocating linear motion can be divided into four
Read moreThe picture shows a humanoid robot and China's "smart feet." Humanoid robots are robots that have human-like shapes and behavioral characteristics. The integrated foot perception system independently developed in China allows the humanoid robot to adapt to more com
Read moreThe gap cavitation is formed when the flow direction changes, the velocity increases, and the pressure drops to the vaporization pressure as the water flows through the slit flow channel. The gap cavitation occurs between the root of the runner blade and the hub of the axial-flow rotary turbine, and
Read moreCentrifuge use rules 1. When the centrifuge is in the pre-cooling state, the centrifuge cover must be closed. After the centrifuge is finished, the rotor should be placed on the test bench and the residual water in the chamber should be dried. The centrifuge cover is open. 2. When the rotor
Read moreHow to choose stainless steel deep well pump, SP pump 1. First pay attention to view the material, stainless steel is divided into 201,202,304,316 and so on. Do not think when buying the factory to ignore this large-scale, selling products must be designated pump material, including pump parts, 2. P
Read moreFor the steel price increase since March , I believe many people can see it very clearly; although the steel price is constantly rising, the actual terminal transaction is still light and people feel boring, and even some steel traders said that this year 1, 2 In March, the actual consumption of
Read moreThe switch socket is related to the life in the future, must consider carefully, the switch socket in different places has the high bottom, how to install is safe and convenient? Then look at Xiaobian teach you how to install the switch socket. Home renovation switch socket installation is essent
Read moreChildren's paint more playing "green card" Recently, Xiao Bian's home decoration, one after another visited the major paint market, and found that many of them have introduced children's paint products, such as Dulux, China Resources, Garbo, Nippon and other brands h
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