气态介质对建筑材料的腐蚀性分级决定于介质类型、浓度及环境湿度。
The classification of the corrosiveness of gaseous agents on the structural material are depend on agent type, agent density and environmental humity.
的气态反应物直接通过在真空反应室提供了辉光放电形成超细粉体材料。
The gaseous reactants are directed through a glow discharge provided in the vacuum reaction chamber to form the ultrafine powder material.
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