backfilling造句

1、Not backfilling silt, corruption and graft, permafrost soil organic matter.
不得回填淤泥、腐植土、冻土及有机物质。

2、A Discussion on the Technique of Backfilling by Tailings of Heap Leaching
堆浸尾渣的回填技术探讨

3、The backfilling cost is high if cement is used as a cemented material.
采用水泥作为矿山充填胶结材料，充填成本高。

4、Please clearly indicate the final clearance area and backfilling area for the foundation.
请明确基础的最终清理范围及回填范围。

5、Therefore, the upward drift stoping with backfilling is decided to use.
为此决定采用上向进路充填法进行回采。

backfilling翻译