| 单词 | ratchet jack |
| 释义 | > as lemmasratchet jack ratchet jack n. ΚΠ 1866 Railroad Prop. (U.S. Congress) 504 (table) 2 large ratchet jacks. 1984 Mod. Law Rev. 47 52 The plaintiff was injured when he was lowering the body of a tipper vehicle by means of a ratchet jack manufactured abroad. < as lemmas |
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