题目内容
Drum brakes use an internal expanding brake shoe with the lining attached, working within the confines of a rotating brake surface called a______ .
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The______ diameter is expanded to contact the brake surface by a hydraulic cylinder that is referred to as a wheel cylinder.
Fluid pressure from the______ supplies fluid to wheel cylinders causing them to expand.
Disc brakes employ a______ that rotates with the wheel.
A hydraulically operated______ is used to force the lining friction material against the braking surface of the rotor for stopping wheel rotation.
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