composition metal

基本解释

Direct and some metal composition chlorides of chlorine under the moist circumstance .
氯在潮溼的情況下直接與某些金屬郃成氯化物。
General bridge crane lifting trolley generally, bridges run organization, structure and composition of metal bridge.
普通橋式起重機一般由起重小車、架橋運行機搆、橋架金屬結搆組成。
A method for quickly measuring the composition of metal comprises the following steps: A. placing: placing an integrated metal sample below an electrical sparkle generating hole;
一種快速測量金屬組成的方法，該方法包括以下步驟： A。放置：將金屬樣品整塊放在電火花産生孔下；
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