channel improvement
短语词组
- channel l improvement 河道整治
- Channel dredging and improvement 疏濬整治河道
- river channel improvement 航道整治
- flow channel improvement works 低流量河槽改進工程
- channel improvement model 河道治理模型
- deepwater channel improvement project 深水航道治理工程
- channel improvement project 航道治理工程
- wind channel improvement 風洞改進 返回 channel improvement