介绍了为解决高锰钢铸件的表面化学粘砂现象，结合生产实际，提出将铸件原砂由石英砂改为镁橄榄石砂。

In order to solve the surface chemical scab phenomenon of the high manganese steel casting, the method that replacing quartz sand with magnesium olivine sand was put forward in this paper.

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本文就活性炭纤维的原料、制法、孔结构控制、表面化学特性、应用前景等方面作了较为系统的介绍。

ACF's materials, process, pore structure control, surface chemical modification and its application were systematically introduced.

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介绍了镁合金表面化学镀、电镀、干法镀等工艺的基本原理、工艺特点和国内外研究现状。

Actuality, theory, and property of plating processes on magnesium alloys were introduced, such as electroplating, chemistry plating and dry plating.

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