But actually, dodo mean something else. There are several explanations. They might stand for the knot of tail they, or even the sound they made.
其实，渡渡有另一层含义，可能代表着他们尾部的环结，抑或是他们发出的声音。
In standing wave method, the sound is not perfect standing wave, so the swing is not zero at wave knot.
驻波法中形成的声场不是理想驻波场，且波节处振幅不为零。
In standing wave method, the sound is not perfect standing wave, so the swing is not zero at wave knot.
驻波法中形成的声场不是理想驻波场，且波节处振幅不为零。
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