The most obvious difference is that for motion blur, the blur is only in one direction.

最明显的区别是运动模糊，模糊的仅仅是一个方向。

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Geosphere, hydrosphere and atmosphere are fluids in motion; their main difference is their viscosity.

地圈，水圈和大气是流体；他们的主要差别是他们的黏性。

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The drive train users two differentials, with one to produce forward and reverse motion and the other to produce a difference in speed between the two sides.

传动装置有两个差速器，一个用于产生向前和向后的运动，另一个在两侧形成速度差。

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Range of motion was more improved in the platelet group after six months, but the difference between the groups wasn't significant.

WSJ: The Research Report: How to Treat Burns With Running Water

The difference is staggering, especially when Dietz trots out the slow-motion footage.

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