The type KH-2 ejector results in a higher benefit than KH-1. The problem of riser vibration has also been successfully resolved.
研制的KH -2型喷嘴经济效益比KH - 1型有提高，还成功地解决了提升管的振动问题。
Organic-inorganic hybrid composites were prepared by the sol-gel method for the wear-resistant coating on epoxide resin and TEOS, KH-560, KH-570 were used as starting materials.
以正硅酸乙脂、KH- 560、KH - 570为先驱体，采用溶胶-凝胶法结合旋转涂敷法在环氧树脂基体上制备了有机硅耐磨涂层。
Organic-inorganic hybrid composites were prepared by the sol-gel method for the wear-resistant coating on epoxide resin and TEOS, KH-560, KH-570 were used as starting materials.
以正硅酸乙脂、KH- 560、KH - 570为先驱体，采用溶胶-凝胶法结合旋转涂敷法在环氧树脂基体上制备了有机硅耐磨涂层。
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