The mechanism of spin motion and the function of various control surfaces are explored during the aircraft entry into and recovery from, a spin.

探讨其运动机理以及各操纵面在尾旋进入和改出中的作用。

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Finally, we compare six degrees of freedom simulation results of ballistic re-entry missiles motion with the computing results of approximate formula. The comparison shows the feasibility...

最后用六自由度弹道数字仿真结果同近似计算结果作了比较，比较结果表明了近似分析的可行性。

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"Apple's entry created new competition in eBook distribution and a vastly larger pool of eBook consumers, " it wrote in its motion.

WSJ: U.S. Warns Apple, Publishers on E-Book Pricing

Boost Mobile offers a selection of quality handsets from Motorola, Sanyo, Research In Motion (RIM) and Samsung, ranging from entry-level to high-end devices.

ENGADGET: Boost Mobile rolls out Motorola i296 Mobile