... bottom articulated joint 底部铰接缝 bottom tool joint 下方接头 Standard Bottom Joint Effort 准则下共同努力 ...
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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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That joint investigation will have every tool it needs, including subpoena power, to get to the bottom of what went wrong.
WHITEHOUSE: Press Briefing on Oil Spill in Gulf of Mexico
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