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沉淀铜 [chén diàn tóng]
precipitated copper
- 本尼迪克特溶液是硫酸铜（二价）的碱性溶液，它可以通过还原糖被还原为不溶性的铜（一价）的氧化物，产生红色的沉淀物。
Benedict's solution is an alkaline solution of copper (II) sulfate, which is reduced to insoluble copper (I) oxide by reducing sugars, giving a red precipitate. - 该压力表除具有一般压力表的性能外、还具有良好的耐振性能，特别适用于机械震动和压力有波动的条件下，测量对铜合金不起腐蚀作用，且不结晶，不沉淀的气体、液体、蒸气等介质的压力。
It has good shock-resistant feature besides others,especially suitable for gases,liquids or vapor, under mechanical shock and fluctuating pressure,which neither corrode copper alloys, nor crystallize,nor precipitate. - 用于测量对钢和铜合金不起腐蚀作用无爆炸性，不结晶、不沉淀的气体或液体的压力和负压。
It is used for the pressure and negative pressure of gas or liquid that won't corrode steel and copper alloys,nor explode, nor crystallize, nor precipitate.
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