二氧化钨

tungsten dioxide的用法和样例：

例句

Method of determinating of tungsten trioxide in artificial scheelite is described.建立了人造白钨中三氧化钨的测定方法。
A quality of the yellow tungsten oxide produced by Soviet hydrometallurgical plants was often lower than abroad.但苏联工厂采用湿法冶金生产的黄色氧化钨产品，其质量仍然高于国外同类产品。

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both principal and interest

brake band anchor clip spring