drainage ditch
短语词组
- Drainage open ditch 明渠排水
- Drainage e Ditch 排水沟
- drainage blind ditch 排水盲沟
- design of drainage ditch 排水沟设计
- depth of drainage ditch 排水沟深度
- drainage ditch on raisedridge 畦埂渠沟
- farm drainage ditch 排水毛沟
- certified drainage ditch 合格排水沟
- surface drainage ditch 地表排水沟 返回 drainage ditch