backfill🔊 朗读

双语例句

1 . At last, some suggestions were raised for the concrete backfill mining.

最后对具体的充填开采方法提出了建议.

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2 . A systematical study is made of the stability of backfill in blasting.

对爆破动载下充填体稳定性进行了系统研究.

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3 . This article is good for promotion of backfill .

本文对充填技术的推广,具有一定的参考价值.

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4 . The upward drift stoping with backfill is a mining method with a widespread use future.

上向进路充填采矿法是一种具有广阔应用前景的采矿方法.

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