... 7．产品管理及贮存HANDLING AND STORAGE 9．物理与化学性质PHYSICAL AND CHEMICAL PROPERTIES 外观（20oC）Liquid比重（水=1at25oC）0。800 ...
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与金不同，银有自己的物理和化学性质。
Silver has its own physical and chemical properties as distinct from gold.
小分子物质，特别是一些药物分子，与DNA的作用，影响到DNA的生理和物理化学性质，改变了DNA的转译和复制。
Interaction of DNA with small molecules, especially drug molecules affected physiological and physical chemical character of DNA and changed the transfer and copy of DNA.
本文在介绍铟的有关物理化学性质的基础上讨论了铟作为封接材料所形成真空密封的特点与机理。
In this paper the general physical and chemical properties of the indium which is used as a soft-metal sealant is described.
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