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Those will provide basic theory for study regulation of water and sediment movement.
为今后研究河流水沙运动规律提供了理论依据。
youdao
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The regulation and system is a basic foundation of inner management.
规章制度是组织加强内部管理的重要基础。
youdao
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The regulation and system is a basic foundation of inner management.
规章制度是组织加强内部管理的重要基础。
youdao