rare metals TEF/TCF常用TEF/TCF专四

稀有金属 newrare metals的英文翻译是什么意思，词典释义与在线翻译：参考翻译稀有金属 rare metals的用法和样例：例句Some rare metals have radioactivity.
某些稀有金属具有放射性。Rare metal is indispensable for the aircraft industry.
稀有金属是航空工业发展不可或缺的原材料。

Rare metals are extracted By our factory from scrap iron and copper oBtained By recycling the oBsoleRare metals are extracted By our factory from scrap iron and copper oBtained By recycling the oBsole

本厂生产的稀有金属是收旧利废，从废铜烂铁中提炼出来的。

稀有金属 newrare metals的英文翻译是什么意思，词典释义与在线翻译：参考翻译稀有金属 rare metals的用法和样例稀有金属 newrare metals的英文翻译是什么意思，词典释义与在线翻译：参考翻译稀有金属 rare metals的用法和样例

某些稀有金属具有放射性。

Nor can it be reckoned in the collective price of the rare metals and precious stones that rest in tNor can it be reckoned in the collective price of the rare metals and precious stones that rest in t

也不是可以用我们随着祖先的脚印踩踏的非洲土地下所藏有的稀有金属和珍贵宝石的总价来估量的。