我跑上去踩下弹簧，松开它的脚。
I ran in and put my foot on the trap spring, mashed it down, and released his foot.
设计时要确保总摩擦力小于折回弹簧的弹力，这样当松开踏板时，弹簧才会弹回，油门才会闭合。
The amount of friction is designed to be some degree less than the return spring, so that when the pedal is released, it returns to the closed position.
当你松开踏板，膜片弹簧将压盘逐渐压紧在离合器盘上，压力依次传动飞轮。
When your foot is off the pedal, the springs will push the pressure plate against the clutch disc, which in turn presses against the flywheel.
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