#hydraulic_brake__hydraulicbrake__hydraulic_brakes  brake system in which a brake pedal moves a piston in the master cylinder; brake fluid then applies great force to the brake pads or shoes
  supertype:  brake_system__brakesystem__brakes__brake  brake consisting of a combination of interacting parts that work to slow a motor vehicle
  part:  hydraulic_brake_cylinder  brake_pedal
  subtype:  disk_brake__disc_brake  hydraulic brake in which friction is applied to both sides of spinning disk by the brake pads
  subtype:  drum_brake__drum_brakes  hydraulic brake in which friction is applied to the inside of a spinning drum by the brake shoe
  subtype:  foot_brake  hydraulic brake operated by pressing on a foot pedal

No statement uses or specializes hydraulic_brake; click here to add one.