The beetles are the first animals found to have a screw-and-nut mechanism in their bodies.
人们也是第一次在这种甲虫身上看到动物有螺丝——螺母式的身体构造。
They all had the same screw-and-nut mechanism.
结果发现：它们腿和身体连接的机制都像螺丝拧进螺母一样。
Connect hydraulic nut to oil pump and screw in dial gauge.
将液压螺母与油泵连接并用千分表拧紧。
With the main blade lifting screw, nut structure, stable and reliable.
主锯片升降采用螺杆，螺母结构，平稳可靠。
Place a standard nut on the screw and tighten it down securely.
放置一个标准的螺丝和螺母拧紧了安全。
It is made up of anchorage steel plate, screw nut and anchorage steel bar.
所研究的锚固系统是由高强螺母、钢锚板和锚固钢筋组成。
Japanese ball screw rod and round rail, original screw nut, imported linear and square rail.
日本产滚珠丝杠，原配螺母，进口直线方形导轨。
Japanese ball screw rod and round rail, original screw nut, imported linear and square rail.
日本产滚珠丝杠，原配螺母，进口直线方形导轨。
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