strengthening of metals是什么意思 strengthening of metals怎么读
strengthening of metals的相关资料
strengthening of metals的用法和样例
- Ahead of us lay ten days of intensive training.
我们当前有十天的强化训练。 - It is also used as a strengthener of titanium-based alloys.
也用于钛基金属的强化剂。
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