bleederdewatering orificedischarge orificedrain holedrainage holedrainage openingoutgateoutlet entrancescu erscupperspillwayweep holeweep-hole泄水: weepage; sluicing孔: hole; opening; aperture排水孔泄水孔: water course甲板泄水孔: deck drain; deck scupper内狭泄水孔: reentrant orifice下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:泄水孔,即可在微信中查询翻译