| 单词 |
jack-screw |
| 释义 |
ˈjack-ˌscrew A lifting-jack with a screw; = Jack n.1 10.
1769Falconer Dict. Marine (1789), Verin, an instrument nearly similar to a jack-screw. 1840R. H. Dana Bef. Mast xxix. 99 The jack-screws which are used in stowing cotton. |

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