bottom tool

基本解释

You may also want to carry around lubricant, a bottom bracket tool and some spanners .
您可能还需要随身携带的润滑剂，一个中轴工具和一些扳手。
The make-up tong is placed on the top tool joint and the break-out tong is placed on the bottom tool joint.
外钳打在上边的接头上，内钳打在下边的接头上。
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Research on vibration problems which is the main reason causing bottom drilling tool failure, can reduce drilling tool damage and emergence of underground accidents.
振动问题一直是引起底部钻具失效的主要原因，对其进行研究能减小钻具损害和各类井下事故的发生。

But, as the International Crisis Group, a think-tank, wrote last year, corruption is not only a means of personal enrichment for the elite, but also a powerful tool of political control: everyone, from top to bottom, is complicit, and vulnerable to co-option.
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That joint investigation will have every tool it needs, including subpoena power, to get to the bottom of what went wrong.
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The bottom line was that switching critical data from the iPhone to the RAZR was painless, once I found the right tool to use for the music transfer, even for a decade-plus devoted Apple user.
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