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词汇
jack screw
释义
jack screw
基本
英英
例句
n.
螺旋千斤顶
名词 jackscrew:
screw-operated jack
用作名词
Each of the four legs contains a simple screw jack with a thrust bearing that is operated telescopically inside of two tubes.
四条腿中每个都装有一个简单的螺旋千斤顶,千斤顶中又有一个在两根管道中做伸缩操作的推力轴承。
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更新时间:2026/10/1 11:43:18