| 单词 | tension-pulley |
| 释义 | > as lemmastension-pulley tension-pulley n. a free pulley or roller over which a belt, etc., passes to keep it stretched tight; a tightening-pulley. ΚΠ 1844 H. Stephens Bk. of Farm II. 303 For the purpose of keeping a due degree of tension on the chain, a small movable tension pulley is applied. < as lemmas |
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