柯林斯詞典detent /d??t?nt/ 1. N the locking piece of a mechanism, often spring-loaded to check the movement of a wheel in one direction only (機(jī)械中的)止動(dòng)器; 常由彈簧支承以檢測(cè)輪子只向一個(gè)方向行駛→see also pawl 返回 detent