The bouncing motion of particles being moved by a fluid.

流体推移颗粒时呈现的跳跃式运动。

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The bouncing overall power is nearly maximized at the optimum frequency ratio of the minimum pitching overall power. The higher rear-frequency and the higher rear-damping ratio reduce pitching motion.

跳动总功率在最小俯仰总功率的最佳频率比时，几乎达到最大值，较高的后频和较高的阻尼比减少了俯仰运动。

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Research in Motion (NASDAQ:RIMM) had been bouncing well from lower levels until late last week, when weak earnings sent the stock down 20%.

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