灰色粉末状金属，纯净、无肉眼可见夹杂物及氧化色。
Gray powder metal, pure, without any visible inclusions and oxidation color.
锌粉是一种带蓝灰色或浅灰色粉末，可用于镀锌、铸件、锌锰干电池、肥料、颜料等工业。
Zinc powder is a kind of powder with blue and grey or light grey. It is usually used in electroplating, casting, zinc-manganese dry cells, fertilizer and color industry.
灰色粉末。是由石灰石(碳酸钙)和粘土(含二氧化硅和氧化铝)加热而成的，硅酸钙和铝酸钙混合物。
A gray powder that is a mixture of calcium silicate and calcium aluminate made by heating limestone (calcium carbonate) and clay (containing silicon. dioxide and aluminum oxide).
灰色粉末。是由石灰石(碳酸钙)和粘土(含二氧化硅和氧化铝)加热而成的，硅酸钙和铝酸钙混合物。
A gray powder that is a mixture of calcium silicate and calcium aluminate made by heating limestone (calcium carbonate) and clay (containing silicon. dioxide and aluminum oxide).
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