The driller is to trip off bottom and out of the hole at a speed that will not cause swabbing.

司钻要用一个对井底不会产生抽吸的速度进行起钻。

youdao

Then Houston, the control centre on the earth, called up and told me to use the tape to tape the bottom of the handrail and pull it off the telescope.

然后休斯顿，地球上的控制中心，打电话给我，让我用胶带把扶手的底部粘上，然后把它从望远镜上拉下来。

youdao

It invites the question: is this just a bounce off the bottom or the start of a new uptrend?

但它同样引出一个问题，这究竟是暂时脱离谷底的反弹还是新一轮牛市的开始？

youdao

They want to be sure that he is not dealing off the bottom of the stack of cards.

VOA: special.2009.11.22

STUDENT: -- want to be off the bottom branch.

学生：脱离最底层的分支。

麻省理工公开课 - 计算机科学及编程导论课程节选

The expression, dealing off the bottom, now means cheating in business, as well as in cards.

VOA: special.2009.11.22

The Oil Service Sector (OIH) has been very weak and trying to bounce off bottom.

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Shropshire skipper James Ralph top scored with 47 for Shifnal but Andy Miller's (5-35) for Walsall gave the Gorway Road side the maximum points, leaving Shifnal just 14 points off bottom spot.

BBC: O'Connell leads way in Shrews win

He wants to cut off the bottom rungs of the economic ladder and hurt low-skilled workers.

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