gravel layer
英
美
- 砾石层
双语例句
- Karez water is leaking through the mountain snow water flow inside the gravel layer of diving.
坎儿井的水源就是山上的雪水经过渗漏流砾石层里的潜水。 - The conclusion is that the high-pressure gunite technique applied to 30 m thick of sand and gravel layer is feasible.
通过本次经验为在深厚层砂卵砾石层中进行高喷灌浆施工提供借鉴。
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