短語詞組短語closing time for valve 關(guān)閥時(shí)間valve -closing time 氣門關(guān)閉時(shí)間valve fast closing time 閥門快關(guān)時(shí)間closing time of inlet valve 進(jìn)口閥關(guān)閉時(shí)間 返回 closing valve time