de·tent /ˈdiˌtɛnt, dɪˈ/
爪,掣子,扳手
detent
掣
detent
掣動
De·tent n. Mech. That which locks or unlocks a movement; a catch, pawl, or dog; especially, in clockwork, the catch which locks and unlocks the wheelwork in striking.
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detent
n : a hinged catch that fits into a notch of a ratchet to move a
wheel forward or prevent it from moving backward [syn: pawl,
click, dog]