英语释义

1. a hole in the bottom of a pump stock through which water enters

2. the hole into which a blasting charge is inserted

片语

Blast-hole drill爆孔鉆

blast-hole charge炮眼装药

Blast-hole arrangement炮孔布置

blast joint hole地层砂沖蚀在耐沖蚀管上形成的孔

drill hole[机] 鉆孔

blast-hole ringing炮眼底扩大

blast t hole炮眼

blast-hole drilling爆孔鉆

blast t hole drill凿巖机

bore a hole鉆孔

英汉例句

• this paper deals with the blasting parameters, working face blast hole patterns and the initiating system in the e-bid section of the furong road cable tunnel construction project in changsha.

  介绍长沙市芙蓉路电缆隧道e标段掘进的爆破参数、工作面炮孔布置形式及起爆方式。

• in addition, our experiments also indicate that the best depth of blast hole is close to shaft radius.

  此外，试验还表明最佳的炮孔深度接近于井筒的半径。

• spacing charging at blast hole bottom is studied to reduce the seismic, which can make the ratio of vibration reduction to 10-15% and reduce the ratio of boulder and root as accessorial method.

  还进一步进行了孔底空气间隔器的降震实验的研究，其降震率达10～15％，作为张沟采场辅助的降震措施，并且有效地降低了大块率和根底的产生。

• this paper describes the theory, features and testing results of the air reverse circulation drilling process used in geo physical blast hole drilling.

  概述了空气反循环鉆进工艺应用于物探爆破孔施工的原理、特点及其试验应用情况。

• the results show that the blast hole diameter has little effect of the vibration level in production blasting, and the other factors should be considered in large scale delay blast design.

  结果表明，除炮孔孔径在实际生产爆破中对振动影响不明显外，其它因素在大区微差爆破的设计中都值得注意。

• the paper introduces the rock blasting technology and 3 kinds of blast hole distribution suitable to different rock, and its remarkable application effect in practice.

  文章介绍了针对不同矿巖条件进行的凿巖爆破工艺及3种典型布孔方法，并在实践中加以调整运用，取得了显着成效。

• effects of rare earth elements (re) on the carburizing process of blast hole rock bits are studied.

  研究了稀土元素对牙轮鉆头渗碳过程的影响。

• the temperature gradient in blast hole was also measured and the temperature gradient was relative to the blast hole depth and its tem…

  同时，还进行了炮孔孔内温度梯度的测量，它与炮孔深度及其温度有关。

• the form and development of the blast hole cracking is the main reason which leads to the effective crush.

  不同炮孔周围裂纹的适量产生与发展，是引起巖石有效破碎的真正原因。

• the optimum design method and basic principles of main reducer of rotary blast hole drill are discussed, the main reducer is taken as a whole and is optimized by discrete complex method.

  论述了牙轮鉆机主机构减速器的优化设计方法和基本原理，以主机构减速器作为整体进行优化，采用离散复合形算法。

• the mechanic affection on the blast hole walls is simply analysed and cracking propagation caused by shaped charge is explained in this paper.

  简单分析了聚能爆破装药在孔内爆破的力学效应，阐明了聚能爆破对巖石定向破裂的控制机理。

• the temperature gradient in blast hole was also measured and the temperature gradient was relative to the blast hole depth and its temperature.

  同时，还进行了炮孔孔内温度梯度的测量，它与炮孔深度及其温度有关。