metallurgy例句

Was he right to change from Physics to Metallurgy?
他由学物理改为学冶金是正确的 吗 ?

Widely used in industry of machinc. electric power, metallurgy, chemical and oil, etc.
广泛应用于机械、电力 、 冶金 、 化工、石油等行业.

In metallurgy industry, iodine is used for purifying high pure metal.
在冶金工业中, 碘用于精炼高纯度金属.

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