Instead, we have a certain energy, we have certain geometric constraints, we have a certain energy constraint and these fall out.
然而,我们有确定的能量,我们有某些几何约束,我们有某些能量约束。
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?
There is a geometric constraint.
受到了几何限制。
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