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为解决这一难题,进行了多项模型试验和现场试验,证实泥沙磨蚀为底孔破坏主要原因。
To solve such a problem, several model tests and site tests have been carried out.
youdao
-
为解决这一难题,进行了多项模型试验和现场试验,证实泥沙磨蚀为底孔破坏主要原因。
To solve such a problem, several model tests and site tests have been carried out.
youdao