backfire用法，sell back什么意思

backfill怎么读，backfill什么意思

英 [ˈbækfɪl]美 [ˈbækfɪl]

[
第三人称单数
backfills
现在分词
backfilling
过去式
backfilled
过去分词
backfilled

]

backfill 常用短语

backfill material回填物料；填充料

1.In power project construction in mountainous areas, many are concerned of gravel backfill soil slopes and treatments.

在山区发电工程建设工程中，许多项目涉及到碎石回填土的边坡和地基问题。

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.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.On the basis of the uniaxial SHPB experiments, the typical impact waves are obtained about the high water material solidifying backfill body.

在高水固结充填体单轴SHPB冲击实验的基础上，得出了充填体的的典型冲击波形；

5.Earth excavation and backfill is to have the appropriate security measures to strictly regulate the construction.

土方开挖与回填是要有相应的安全措施，要严格按规范施工。

6.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

7.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。

8.The indoor experiment on the filling materials used for downward slicing drift mining with cemented backfill in Gaolong Gold Mine was performed.

对高龙金矿下向分层进路胶结充填采矿法所用的充填材料进行了室内试验研究。