explosive safety test 中文意思是什麼
explosive safety test
解釋
爆炸安全性試驗-
Test method and ajudgment of safety of permissible explosive in inflammable gas
煤礦許用炸藥可燃氣安全度試驗方法及判定 -
Test method and judge rules of safety of permissible explosive for coal mining in firedamp
煤礦許用炸藥井下可燃氣安全度.試驗方法和判定規則
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