Through the river model experiment , the tech-economic reasonable river improvement measures are studied.
通过河工模型试验，应研究出技术可行、经济合理的整治方案。
The improvement of the river water environment is an important content of river training.
改善河道水环境是河道整治的重要内容。
The improvement of the river water environment is an important content of river training.
改善河道水环境是河道整治的重要内容。
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