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1·I cut down a big tree, and then began to make a long hole in it.

我砍倒了一棵大树，然后开始掏成一个长条形洞。

2·This paper describes the effects of bottom water cushion on long hole blasting.

本文论述了水垫层在深孔爆破中的作用。

3·A push unit which is provided with a long hole is positioned in the groove of the rotation unit.

一设置于转动单元凹 槽中的推动单元，该推动单元上具有一长孔；

4·The doctor said, the back of his skull smashed, head has a long hole, has not passed through dangerous period.

医生说，他的后脑骨被撞裂，头上有一道很长的口子，目前还没有度过危险期。

5·High pressure ring-shaped DTH drills are key equipment for underground high level large diameter long hole mining.

高气压环形潜孔钻机是地下矿山高阶段大直径深孔采矿的关键设备。

6·The test results indicate that long hole blasting in the crossing hole can improve the suction quantity of firedamp effectively.

理论研究和试验都表明 ，采用爆破方法可以增加瓦斯?。

7·The modelling experiment has shown that the procedures are practicable, the reasonable values of the time interval for long hole m…

根据生产实验结果提出了东鞍山矿微差爆破适宜间隔时间的数值。

8·It takes some question, such as: long hole, HTHP, solidity delay. Those instance and characteristic require cement slurry kept pumpability in a given time.

井段长、高温高压、延迟固井等情况和特点要求水泥浆在一定时期内保持可泵性。

9·In view of long hole section, milt-point, disconnected channels of Xing 1~3 block in Daqing oilfield, proposed countermeasure for detect and treatment channels outside tube.

针对大庆油田杏1~3区乙块三次加密试验区大段、多点、不连续窜槽井问题，提出了相应的管外窜槽检测及治理对策。

10·The principle of increasing gas emission rate by long hole blasting in the crossing hole is discussed. The radius cracked zone in coal seam caused by long hole blasting is calculated.

简要论述了深孔爆破提高瓦斯抽放的机理，以煤体中柱状装药爆炸后的裂隙圈半径进行了计算。