Poor braking action requiring excessive pedal pressure.

制动作用不佳，需加大踏板压力。

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If the brake linings are soaked with oil or brake fluid, they will not hold well, and excessive pedal pressure is required for braking action.

如果制动衬片被油或制动液浸渍，就会失去作用，必须用力踩踏板才能使制动起作用。

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When the driver puts his foot on the brake pedal the system automatically applies the optimum pressure required to avoid hitting the car in front.

当司机用脚踩刹车时，系统能够自动的产生最适当的压力避免追尾。

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For example, a car could gently increase the gas-pedal spring pressure when the speed is too high -- the navigation system knows how tight that upcoming curve is, remember -- or apply a light twist to the steering wheel if the car is drifting off course.

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He argues that with antilock brake and stability systems, 100 percent reliability is possible because they merely survey signals from within the car: wheel speed, pressure applied to the brake pedal, and so on.

CNN: Behold the?all-seeing, self-parking, safety-enforcing, networked car

The machines allow sewing patterns and operations to be standardized across a group of workers by automatically controlling the stitch, pressure of the needle and its speed, which is normally controlled by a foot pedal.

WSJ: Sewing Machines Go High-Tech