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1 ?钨化合物 ...钨化合物 脱卤 [gap=226]SITION METAL COMPOUNDS,ORGANIC SYNTHESIS,CHEMICAL REAGENT,REDUCER,DEOXIDIZATION,TUNGSTEN COMPOUNDS,DEHALOGENATION REACTION ...
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A number of substances have been used as positive contrast agents: silver, bismuth, caesium, thorium, tin, zirconium, tantalum, tungsten and lanthanide compounds have been used as contrast agents. 许多物质已被用来作为阳性造影剂：银，铋，铯，钍，锡，锆，钽，钨和稀土化合物已被使用造影剂。 - 2
This paper reviews the deoxygenative reduction and dehalogenative reduction of organic compounds with the low valent tungsten reagents. 本文对低价钨试剂与有机化合物的脱氧、脱卤还原反应作了简要的叙述。 - 3
Tungsten based compounds and alloys with high density have become more and more important for the functional materials due to their excellent physical and chemical properties. 钨化合物以及钨基高比重合金由于特殊的理化性能而成为重要的功能材料。
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