星云旋转移动的速度减慢了,灯光不再移动了。
通常情况下,一个毒气分子附着在碳纳米管上就不再移动了。
Normally, a gas molecule attaching itself to a nanotube would stay there.
一旦一个蜂群选择了一个地点,蜂群便不再移动,因此必须做出非常正确的决定。
Once a colony selects a site, it usually won't move again, so it has to make the right choice.
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