圆头(螺栓,螺钉)

fillister head的用法和样例:

例句

  1. He said he would head the antenna with a ball.他说他还要给天线安个圆头。
  2. The rounded head of the ulna produces a bulge on the posterior side of the forearm just above the wrist.尺骨的圆头恰在腕上前臂后侧产生一个膨大。

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发表于:2018-12-14 / 阅读(83) / 评论(0) 分类 新概念英语第一册视频

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