它们可以回填混凝土或灰泥在里面的牛肉他们。
They can be backfilled with concrete or plastered on the inside to beef them up.
对大坝渗透用帷幕灌浆、回填混凝土进行处理。
For the seepage control of dam, the curtain grouting and back filled concrete have been adopted. Now the No.
用混凝土护栏建造的1至5米高且用沙回填而成的砂坝从5个不同方案中脱颖而出，被选为最佳方案。
Sand DAMS, which are constructed out of concrete barriers 1-5m high and backfilled with sand, were voted as the best idea from five different proposals.
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