词语次干管
解释submain
submain〔名词〕次干水管,次主管,辅助干线详细»
submain〔名词〕干线的分支详细»
submain〔名词〕次干管详细»
submain〔名词〕次干管(辅助干线)详细»
submain〔名词〕次斡管,地下总管详细»
submain〔名词〕辅助干线详细»
次干管submain详细»