柯林斯詞典tick over 1. V (of an engine) to run at low speed with the throttle control closed and the transmission disengaged (發(fā)動(dòng)機(jī))怠速轉(zhuǎn)動(dòng); 空轉(zhuǎn) (See also idle)[英國(guó)英語(yǔ)] 2. N the speed of an engine when it is ticking over 空轉(zhuǎn)速度3. N (as modifier) 空轉(zhuǎn)的 tick-over speed 返回 tick over