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Well, if this thing is going to vibrate for any length of time it better be a standing wave.
好的，如果它在任意时间振动,那它就是驻波。
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And if it is going to be a standing wave then this must be an integral number of wavelengths.
如果这有个驻波的话,那么周长就是个整数。
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And so there are only two kinds of waves that can exist on this violin string, standing or traveling.
由于这只有两种波,可以存在在这条弦上，驻波或行波。
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Well, this is in a stationary orbit so we need to have a standing wave. Not to scale.
在静止的轨道中,我们需要的是驻波，不是要去测量。
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In order to have an electron in a stationary orbit this implies standing wave.
为了在静止的轨道中拥有电子,驻波是不可少的。
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And a standing wave means there is a geometric constraint which is what?
驻波意味着有几何限制,几何限制又是什么？
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It is in a standing wave configuration.
是个驻波结构。
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There are traveling waves and there are standing waves.
行波和驻波。
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