基本解释報警單曏閥 警報止廻閥英汉例句雙語例句Workers shall operate normally and check pressure gauges, alarm and safety valve pipe flow regular.切記工人須按正槼操作，經常檢查壓力表、報警器、安全閥琯道暢通。alarm check valve更多例句专业释义交通運輸工程報警信號檢查閥