长期以来路基工程质量检测与评价方法是采用传统开挖检查和钻孔取样试验的常规技术。
For a long time, the subgrade project quality testing and evaluation method follows the traditional excavation inspection and drilling and sampling test techniques.
长期以来我国隐蔽工程质量检测与评价方法仍沿用着传统开挖检查和钻孔取样试验的常规技术。
It has been long time that the examination and evaluation of the concealed engineering works are made via some conventional methods, such as excavation and drill sampling.
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