字典網>> 英漢字典>> S開頭詞條>>secondary safety valve(for inner container)的意思 漢英字典secondary safety valve(for inner container)中文翻譯：【化】 二級安全閥(供內容器用)字典網英文字典相關詞條：secondary additive secondary montion secondary data set ground secondary extinctive reflex secondary amputation secondary classification secondary metabolism secondary breakdown secondary reserves secondary sex characteristic