... lag screw 释义：螺钉 leg screw 释义：腿骨固定螺钉 cardiac dilator with block-screw for fixation 释义：带固定锁止螺钉的心脏扩张器 ...
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spider leg screw 蜘蛛架导杆螺钉
Researchers now report just such a discovery: the joint of a beetle leg that turns inward and outward like a screw.
现在，研究人员正是关于这样一个发现做出报告：甲虫肢体关节内外旋转和螺丝的原理异曲同工。
Humans turn a screw to make it move along its length, but the weevil's muscles pull along the length of its leg to make it turn.
人类旋转螺丝使其前进，而象鼻虫的肌肉沿着腿的方向牵拉，使其旋转。
Muscles control how much the leg can turn on the screw threads, the researchers report online today in Science.
肢体通过这种螺旋纹的旋转受到肌肉的控制，科学家今日已于科学在线报道了这一成果。
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