He is repairing the brake lever of an automobile.
他正在修理汽车的刹车杆。
Brake lever
英语例句库
原声例句
美国家庭万用亲子英文
Don't grab the brake levers suddenly while riding fast. You could fall.
当你骑很快的时候，不要突然抓住刹车握把。你会摔倒。
007系列之永远的钻石（下）
There were no controls to bother with except a brake lever and a kind of joystick with a twist-grip accelerator which the girl held fully open with the speedometer steady at thirty.
除了一个制动杆和一种带有扭握式加速器的操纵杆外， 没有其他控制装置可打扰， 女孩将其完全打开， 速度表稳定在三十。
英语百科
Bicycle brake
（重定向自Brake lever）
A bicycle brake reduces the speed of a bicycle or prevents it from moving. The three main types are: rim brakes, disc brakes, and drum brakes. There have been various types of brakes used throughout history, and several are still in use today.
Most bicycle brake systems consist of three main components: a mechanism for the rider to apply the brakes, such as brake levers or pedals; a mechanism for transmitting that signal, such as Bowden cables, hydraulic hoses, rods, or the bicycle chain; and the brake mechanism itself, a caliper or drum, to press two or more surfaces together in order to convert, via friction, kinetic energy of the bike and rider into thermal energy to be dissipated.
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