短语词组短語oil proof sump 隔油池oil l sump tank 集油箱oil collecting sump 集油池oil l sump 油底殼oil leakage sump 泄油池oil pan sump configuration 油磐貯油槽形狀oil sump gasket 油槽墊圈;油底殼墊片engine oil sump compartment 發動機機油油槽區crankcase oil sump 曲軸箱機油槽 返回 oil sump