nonmetallic material是什么意思 nonmetallic material怎么读
nonmetallic material的相关资料
nonmetallic material的用法和样例
- A new drilling multi-hole on the thin metalloid material system is developed.
介绍一种新型的薄型非金属材料群孔的加工系统。 - Even nonmetallic materials are dangerous to touch at these low temperatures.
在这种低温下，甚至接触非金属材料也是危险的。
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