| 单词 | paddle-crank |
| 释义 | > as lemmaspaddle-crank paddle-crank n. ΚΠ 1865 T. Main Marine Steam-engine (ed. 5) 139 There is a boss on the end of the paddle-crank, which..allows the crank-pin to escape from the boss. 1875 E. H. Knight Amer. Mech. Dict. II. 1594/2 The arrangement of the paddle-cranks is intended to equally divide the weight of the controlling frame between the paddle-wheel and the paddle-wheel guard. < as lemmas |
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