1、Not backfilling silt, corruption and graft, permafrost soil organic matter.
不得回填淤泥、腐植土、凍土及有機(jī)物質(zhì)。

2、A Discussion on the Technique of Backfilling by Tailings of Heap Leaching
堆浸尾渣的回填技術(shù)探討

3、The backfilling cost is high if cement is used as a cemented material.
采用水泥作為礦山充填膠結(jié)材料，充填成本高。

4、Please clearly indicate the final clearance area and backfilling area for the foundation.
請明確基礎(chǔ)的最終清理范圍及回填范圍。

5、Therefore, the upward drift stoping with backfilling is decided to use.
為此決定采用上向進(jìn)路充填法進(jìn)行回采。

backfilling翻譯