The structural parameters of kinematics has a supreme comparability between primary and secondary air cylinder, and the consistency and stability of torque and friction can be better.

具有主、副气缸运动学上最大相似性的结构参数，可使得主、副气缸的摩擦力和扭矩尽量一致及平稳性更好。

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The counter rotation reduces the net friction torque.

反向旋转减少了净摩擦力。

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This turning force in a butterfly valve is determined by three factors. (1) friction of the disc to seat for sealing (2) Bearing friction (3) Dynamic torque.

蝶阀上的这种旋转作用力取决于三个因素：(1)阀瓣与阀座密封的摩擦力；(2)轴承摩擦力；(3)动力矩。

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Its two high-speed electric motors operate as one but can act independently (and incidentally, by using reverse torque instead of friction for braking, the motors convert the energy of your motion to help replenish the battery).

FORBES: A Standing Ovation

The base 3.5-liter V6 engine receives a number of friction-reducing enhancements for 2012 and generates a lively 280 horsepower and 254 pound-feet of torque.

FORBES: 2012 Acura TL Review: Balancing Act