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关注：1
2013-05-23 12:21
求翻译：Alloy melting is achieved in protective atmosphere (Nitrogen, Argon or Helium) while a strong vacuum pump is provided in order to boost the suction effect into the mould.是什么意思？ 待解决
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- 离问题结束还有
Alloy melting is achieved in protective atmosphere (Nitrogen, Argon or Helium) while a strong vacuum pump is provided in order to boost the suction effect into the mould.
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