The deficiency of sealing off a borehole by slipping casting in the past is analysed.

A drainage borehole designed depth is 584.

永城矿区某矿排水钻孔设计孔深584.

Horizontal well borehole stability is discussed by experiments in the paper.

用物理实验方法来确定井壁稳定性即井壁缩径可能性.

Shear failure is a basic failure mode of borehole rock.

井眼剪切破坏是井眼岩石基本破坏形式之一.

But the research on borehole deviation control is very few.

但在井斜控制方面的研究还很欠缺.

Borehole hydromining is a kind of safe and efficient new mining method.

钻孔水力采煤是一种既安全、又能极大地提高资源利用率的新的采矿方法.

There is some trouble in the borehole. Don't leave the rig floor.

井下出现复杂情况, 不要离开钻台.

The magnetic memory technique was used to develop a detection system for the borehole casing pipe.

利用铁磁材料的磁记忆性,研制出了井下在役套管检测系统.

The concept of a Borel n-subalgebra, and two propositions related to it has been given, too.

给出了Boreln - 李代数的概念及其性质.

Let ν be a complete Borel probability measure on T and τ a premeasure on X.

设ν是T上的完备的Borel概率 测度,τ是X上 的预测度.

Digging is done by forcing the borer into the ground and twisting the handle.

把钻孔器用力插进地里,转动把手,就可以实现挖掘.

Dose the Wood-borer Sphaeroma terebrans ( Crustacea ) Shapes the Distribution of the Mangrove Rhizophora mucronata?

蛀木生物钻刺团 水虱 是否改变红茄冬红树林的分布形状?

Efforts to stop the spread of the emerald ash borer include cutting down affected trees.

防止花曲柳窄吉丁扩散的努力还包括砍去受害树木.

The Motsoh ( Anoplophora glabripennis ) is a notorious Trunk borer, which eats the woodand settles in wood.

光肩星天牛[Anoplophoraglabripennis ( Motsoh ) ]因其幼虫钻蛀木材,是著名的林业蛀干害虫.

The invasion of the emerald ash borer was first discovered near Detroit, Michigan, in 2002.

这种外来的翠绿色的白腊树虫于2002年在密歇根州的底特律市发现.

Cryptorrhynchus lapathi is an important trunk borer of poplar and nationwide object of forest plants quarantine.

杨干象是杨树重要的蛀干害虫,为全国性森林植物检疫对象.

Ash trees can resist many diseases. But they cannot resist the emerald ash borer bark.

白蜡树可以抵御许多病害, 但是不能抵抗花曲柳窄吉丁.

A new species of Glyptapanteles Ashmead Foerster attacking litch fruit borer Conopomorpha sinensis Bradley ( Hymenoptea: Braconidae )

寄生荔枝蒂蛀虫的刻绒茧蜂属一新种 ( 膜翅目: 茧蜂科 )

It contains genes that allow it to resist infestation by the corn borer.

这种玉米中含有能够抵御玉米螟的基因.

The completed rate of raise borer is an important mark of measuring its operating efficiency.

天井钻机的成井速度是衡量其工作效率的重要标志.

This poison helps the plants resist insect, especially the maize borer.

毒素可以帮助农作物抵抗害虫, 尤其是玉米钻孔虫.