• FG铬酸铜组合使用时,提高推进剂同时大幅度地降低燃速压强指数

    When FG and YB are incorporated, they may obviously reduce the pressure exponent of HTPB propellant as well as enhancing the burning rate.

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  • (CCA)代表的水载型防腐剂,逐渐其他主要有效成分为的水载型防腐剂取代,这类防腐剂中的。

    Arsenic and chromium based water-borne preservatives, especially CCA (chromated copper arsenate), have been partly replaced by some copper based preservatives.

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  • 分别混合湿法消解微波消解两种方法处理鱼虾样品,用原子吸收法测定样品中的含量。

    TO Detect Cu, Zn, Pb, Cd, cr in fish and shrimp With Microwave Digestion and Wet Digestion by AAS.

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  • 分别混合湿法消解微波消解两种方法处理鱼虾样品,用原子吸收法测定样品中的含量。

    TO Detect Cu, Zn, Pb, Cd, cr in fish and shrimp With Microwave Digestion and Wet Digestion by AAS.

    youdao

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