vaccum的用法和樣例：
例句
用作名詞 (n.)
- She has got a vaccum cleaner,but doesn't know what to do with it.
她有一架真空吸塵器，卻不知道怎樣利用。 - A new disc clicker is designed to repair the crutch of the vaccum electric stove used for synthetic diamond catalysts.
為解決生產觸媒用的真空電爐拐臂的修復而設計了花盤夾具，解決了修複電爐拐臂的問題，還可用來加工其它形狀複雜的類似零件。
