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The suspension of the mirrors must be very frictionless, but strongly damped.
反射镜的悬挂既要无摩擦, 但又要有强阻尼.
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It turns so smoothly that it will seem frictionless to any student standing on it.
因为它几乎无摩擦力所以当学生站在上面时可以很容易的转动.
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Precise alignment along the bore produces a frictionless movement and long sensor life.
沿钻孔精确的校准产生无摩擦的运动和长传感器寿命.
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In motion with a fixed frictionless constraint, no work is done by the constraint.
在固定的无摩擦约束运动中, 约束力不作功.
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