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Latest Articles

New technology purified graphene more stable

Recently, scientists from Russia, France, Sweden and Greece have worked together to develop an industrial technology to purify graphene. The new method makes graphene more stable and "intact" even when exposed to ozone for 10 minutes. The researchers said the result is an important advan

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Measures to prevent roofing

According to the extent of the roof's vertical fall and the severity of the casualties, common roof accidents can be divided into two categories: large roof and local roof accidents. (1) The signs and precautions of the big roof Continue to promote coal mining face forward, stope roof control

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Five trends in the development of stage LED lighting technology

As an important part of stage art, people have been pursuing the use of various lights to achieve the desired artistic effect. Therefore, the selection and configuration of stage lighting is especially important. In the past, not only the variety of lamp configurations, but also high power, low lumi

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Balanced labyrinth multi-stage step-down control valve

L40800 labyrinth cage with pressure balanced valve design, the number of coaxial distribution of the labyrinth surface of the cylindrical disc (layer) laminated composition, according to different media process parameters, the design of a number of different labyrinths Specifications and stack layer

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Selecting rare earth process selection process technology

Reselection method Reselection method is to divide the mineral beneficiation composition according to the difference in relative density (specific gravity generally known) is. Mineral particles of different densities are subjected to hydrodynamic forces and various mechanical forces in the moving

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