primary blowhole

 
  • 一次气孔

primary blowhole的用法和样例:

例句

  1. The main elements from aspects of Silicon content and dissolvability of hydrogen determine the change of secondary blowhole quantity.
    研究合金成份和原始含气量对生成二次气孔的影响。

primary blowhole的相关资料:

临近单词

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