| 单词 | spiral spring |
| 释义 | spiral spring (once / 62869 pages) n WORD FAMILY spiral spring: spiral springs USAGE EXAMPLESThe sixteen pieces of Defense Distributed's printed handgun, including spiral springs for its hammer mechanism and a nail used as its firing pin. Forbes(May 05, 2013) The same thing will happen if a spiral spring be substituted for the coach spring. Gray, Andrew, Lord Kelvin—An account of his scien...(2012) The spiral spring is described as received in two cups,—one above and one below. Baird, Matthew, Illustrated Catalogue of Locomotive...(2012) n a spring that is wound like a spiral Hypo|Hyper hairspring a fine spiral spring that regulates the movement of the balance wheel in a timepiece spring a metal elastic device that returns to its shape or position when pushed or pulled or pressed |
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