canal system
短语词组
- canal river system 运河水系
- canal transport system 漕运制度
- canal distribution system 渠道分布系统
- North Canal River System 北运河水系
- canal -system water use efficiency 渠系水利用系数
- open canal system 根部开放
- structures for canal system 渠系建筑物
- canal safe transit system 运河安全通航系统
- canal system density 渠系密度 返回 canal system