boreholes

And safe water outlets, including boreholes and protected natural springs , can be constructed by the thousands within a year.

而安全的水源，包括钻井与受保护的自然泉水，在一年内便可以挖掘数千个。

Practice indicated that the surface boreholes have better effect on gas drainage from mining area.

实践表明，地面钻井对抽放采动区域瓦斯效果较好。

A second form involves technology used for exploration boreholes in the hard rock mining industry.

小井眼的第二种形式包括使用了在采矿工业中使用的硬岩石中的勘探技术。

Mechanism of hole-to-hole millisecond delay blasting and behaviour of soft spacer at the bottom of boreholes are discussed.

本文分别论述了孔间微差爆破和炮孔底部柔性垫层的作用机理。

Raw borehole data have to be deciphered to carry out auto-modeling from boreholes.

现有的钻孔自动建模算法要求对原始钻孔数据进行解译。

After that, rescuers were able to dig boreholes that became like umbilical chords to the trapped men.

此后，营救人员能够凿洞了，这些洞如同脐带一样通向被困的人们。

Injection test with double-packer can measure permeability coefficient of hydraulically conductive intervals intersecting boreholes.

双栓塞压水试验技术可以分段测量钻孔揭露岩体的渗透参数。

The optical technology allows the device to be deployed in boreholes, narrow shafts drilled into the Earth.

光学技术的应用使得地震仪能够装置在深入地壳内部的钻孔及狭窄深井。

The reasonable testing methods, arranging boreholes and selecting blasting parameters at a typical work face are introduced.

介绍了一个典型工作面试验方法、炮眼布置和爆破参数的选取。

Used to measure static water level in boreholes, wells and standpipes. Emits a steady tone and light signal.

采用小直径探针设计，用于测量钻井、井和水塔中欧那个静水水位。

A pseudo-spectral time domain (PSTD) forward modeling was used to simulate electromagnetic wave propagation between two boreholes .

本文正演计算中采用时间域伪谱（PSTD）法模拟井间电磁波的传播。

The pilot tunnel and the super-long large-diameter horizontal boreholes installed are favourable to the releasing of the high ground stress.

超前小导洞，超长水平大钻孔高地应力释放技术的应用，有一定效果。

Based in Nairobi Kenya, our company is a leader in water engineering projects like boreholes, dams, water pans, pipelines, and irrigation.

在肯尼亚的内罗毕，我们公司是一家如钻孔，水坝，水锅，管道和灌溉用水工程项目的领导者。

The alternative method to drill gas drainage holes underground is to drill boreholes from surface to the goaf area.

采用地表垂直钻孔抽放采空区内的瓦斯是瓦斯治理技术的另一选择。

This paper presents a high pressure permeability measurement technique in boreholes and its application for pressure tunnels.

介绍了钻孔高压压水测试技术，并结合其在工程中的具体应用做了初步分析。

It's hard to imagine the outside world providing free or subsidized fertilizer and boreholes to every African village that needs them.

很难去设想外界会提供免费或肥料补贴以及钻孔设备给每个需要它们的非洲村落。

Boreholes are primary means of getting stratum information, and have very high re-use value.

工程钻孔数据是目前获取地层信息的主要手段，具有很高的重复利用价值。

In smooth boreholes of constant diameter, the effect of the borehole is well understood and can be corrected for.

在井径不变、井壁光滑的井中测井，井眼影响容易校正。

Connections and boreholes for auxiliary and temporary bracing shall be removed or blocked off after the bracing has been dismounted.

支撑物被拆卸后，应移除或阁开用于辅助的接线和凿洞以及临时支柱。

Food, water, medicine, bibles, communication devices and others are supplied to underground via the boreholes.

食物、水、医药、圣经、通讯器材及其他通过钻孔输送到地下。