The effect of solidification degree on the properties of powder coating was studied.

研究了固化度对粉末涂层性能的影响。

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The sorts and properties of powder metallurgy tool and die steels abroad were summarized.

概述了国外粉末冶金工模具钢的种类及特性。

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The effects of copper content on the physical and mechanical properties of powder metallurgy airplane brake materials were studied.

研究了大范围铜含量对粉末冶金航空刹车材料物理力学性能的影响。

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These are wrapped in carbon nanotubes - tiny "straws" of pure carbon that are renowned for their electrical properties - and coated with a platinum black powder.

BBC: Robotic jellyfish fuelled by hydrogen invented