... 枪炮工 gunslinger 枪炮黄铜 gun brass 枪炮操作 gunnery ...
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... 胶结，胶带 gumming 炮艇 gun boat 炮铜 gun brass ...
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... 枪炮声 the sound of gunshots 枪炮铜 gun brass; gun metal 枪炮位 gun site ...
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gun n brass 枪炮黄铜
·2,447,543篇论文数据，部分数据来源于NoteExpress
In order to obtain rust, brown, gun-black and ancient green films on brass at room temperature, the chemical coloring process on brass in acid solution was studied.
为了在黄铜基材上室温下获得铁锈色、棕色、枪黑色、仿古绿色膜层，研究了黄铜酸性化学着色工艺。
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