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1·To protect it, we had to backfill on it again.

为了保护遗址，又将遗址进行了回填。

2·The self-tuning mechanism will backfill if necessary.

自优化机制将在必要时进行回填。

3·We backfill, kick some leaves around, drag over a small fallen tree.

然后我们把土填回坑里，踢过来一些树叶在上面，又拖过来一棵小枯树。

4·Added: You can craft Destroyed Stone to backfill holes while mining.

补充：你可以在采矿时将石头的石头填回填土。

5·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。

6·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。

7·The backfill simulating system and its automatic control are introduced in the paper.

本文对充填模拟系统的组成及充填站自动控制系统进行了介绍。

8·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。

9·The thing we need to do: dig a hole, place vegetable shoots, backfill the hole, watering.

种菜要做的事：挖土坑、放菜苗、盖土、浇水。

10·Site stripping, subgrade preparation, rough and finish grading, excavation, backfill and compaction.

场地清表、地基处理、初平和终平、开挖、回填及压实。

回填

1·Now,more than 130 managers failed because, in addition to survivorship bias, there's something called backfill bias.

其实失败的经理人超过130位,因为除了生存偏差之外,还有称为回填偏差的影响

2·Looking at this particular group, he estimated survivorship bias to be 4.4% per year and backfill bias to be 7.3% per year.

分析这个特定的样本，他估算其生存偏差每年达到4.4%，回填偏差每年达到7.3%。

3·You've got survivorship bias taking out bad records and then you've got backfill bias adding good records.

生存偏差去掉了那些糟糕的记录,回填误差又加入了一些好的记录

4·So, we're talking about a group of funds that in aggregate probably produced somewhere in the low teens returns and he's got 11.7% per year combined survivorship bias and backfill bias.

因此我们说这组基金总体上，大概产生了略高于10%的收益率，他算出的数字是每年11.7%，结合了生存偏差和回填偏差。

5·Before road works starts, the underground piping works under the road foundation should have already completed and backfill should have also completed according to design requirements.

道路工程施工前，路基下的地管工程应施工完毕，并按设计要求完成土方回填。

回填土

1·By an analysis of the backfill tamping problems in drainage pipelines, and after many years of practice, the author has found corresponding measures with good results.

通过对排水管道回填土夯实存在问题的分析，经过近几年的实践找到了相应的措施和对策，并收到了良好的效果。

(1)backfill material回填物料；填充料