| 单词 | spiral spring |
| 释义 | > as lemmasspiral spring spiral spring n. ΚΠ 1690 J. Locke Ess. Humane Understanding iii. vi. 223 Some [watches] have the Balance loose, and others regulated by a spiral Spring. 1869 W. J. M. Rankine Cycl. Machine & Hand-tools Pl.H 9 The projecting piece, a, is kept up to the slide, b,..by means of the spiral spring and die, h. < as lemmas |
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