Note: different rubber for screw pumps using different media.

注意，螺杆泵所使用的介质不同应采用不同的橡胶。

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The working principle and application of a hydraulic testing platform for screw drilling tools are introduced.

介绍了一种螺杆钻具液马达试验架的工作原理及实际使用情况。

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You all need not to be nervous, I am an automobile repairer, about the wrench, it is used for screw when I work, is it reasonable?

大家不要紧张，我本身是一个汽车维修员。这个扳子呢，是我工作时用来上螺丝的，很合理吧？

youdao

So not only is there evolutionary pressure for me to lie to you, for me to persuade you for instance, that if we're going to have a conflict- if you are threatening me " "Don't threaten me, I am not the sort of man you could screw around with" But there's evolutionary pressure for you to look and say, "No. You are the sort of man you could screw around with.

因此，不仅存在着要求我对你说谎,的进化压力，比如，如果我们之间存有冲突-,当你威胁我时,我会说“别吓唬我，我可不是吃素“,而且还存在着要求你辨别谎言的进化压力,你会说，“不，你肯定不行。

耶鲁公开课 - 心理学导论课程节选

The need for a screw with threads shaped to mate with the substance it is penetrating has always been out there.

FORBES: The Taming of the Screw

For centuries now the screw has held things together, and for almost as long it has been frustratingly inept at its central purpose.

FORBES: Magazine Article

Massive Retaliatory Strike cooperate until the first screw, and then screw for the rest of the game.

FORBES: Generous Tit For Tat: A Winning Strategy