escape wheel
柯林斯詞典
1. N a toothed wheel that engages intermittently with a balance wheel or pendulum, causing the mechanism to oscillate and thereby moving the hands of a clock or watch 擒縱輪 (Also called scapewheel)[horology]
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1. N a toothed wheel that engages intermittently with a balance wheel or pendulum, causing the mechanism to oscillate and thereby moving the hands of a clock or watch 擒縱輪 (Also called scapewheel)[horology]