| 单词 | worm-spring |
| 释义 | > as lemmasworm-spring worm-spring n. a spiral spring. ΘΚΠ society > occupation and work > equipment > machine > parts of machines > mechanism > [noun] > part of > spring spring1428 sprent1511 gin1591 resort1598 worm1724 worm-spring1730 scape-spring1825 leaf spring1855 blade-spring1863 nest spring1866 tension spring1877 coil spring1890 1730 Philos. Trans. 1729–30 (Royal Soc.) 36 133 The upper Wire or Point..is by Means of the Worm-spring EF.., made to push the said Beam upwards with the Force of the Spring. 1797 Encycl. Brit. XIII. 488/1 There must be a worm-spring fastened to the key, and to the bar W.., to keep down the end of the key. < as lemmas |
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