电子的快速运动使得缓动的核把电子“看成”象电核云，而不是象分立的粒子。

The rapid motion of the electros causes the sluggish nuclei to "see" the electron as a charge cloud rather than as a discrete particle.

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复制、粘贴过渡，反转过渡，并使用超过25种的内建缓动效果让你的作品更有创意。

Copy and paste transitions, invert them, and choose from over 25 built-in easing effects for added creativity.

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这里是两个自定义时间线的动态演示。“进场”和“离场”都持续200毫秒，但它们有不同的缓动函数。“离场”动画会在轻微的延迟之后开始。

Here are a couple of custom timings in action. Both enter and leave last for 200 milliseconds but they have different easings. The leave begins after a slight delay.

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