名词
中文翻译：扣环弹簧
同义词：
['latch', 'catcher', 'catch-spring']
例句：
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1.The door was held open by a strong latch spring.
门被一个强大的扣环弹簧撑开。
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2. The old car had a worn-out latch spring that needed replacing.
这辆旧车有一个磨损的扣环弹簧，需要更换。
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3.The new lock uses a more sophisticated latch spring system.
新的锁使用了更复杂的扣环弹簧系统。