用钢尺做精密量距是土坝纵向水平位移观测的最优观测方法。
Using steel tapes to measure the distance is the best method for the observation of the horizontal displacement of earth DAMS.
用钢尺做精密量距是土坝纵向水平位移观测的最优观测方法。
Using steel tapes to measure the distance is the best method for the observation of the horizontal displacement of earth DAMS.
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