It is in a standing wave configuration.

是个驻波结构。

youdao

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？

youdao

Methods Use a standing wave tube to measure the sound absorption coefficient of many kinds of grain.

采用驻波管法测量了多种粮食的吸声系数。

youdao

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。

麻省理工公开课 - 固态化学导论课程节选

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。

麻省理工公开课 - 固态化学导论课程节选

And you can think about that if you think about a standing wave, for example, where you can have amplitude at many different values of x, so an amplitude at many different distances, but you also have areas where there is a amplitude.

你们可以想象一下驻波，在不同ｘ处,可以有不同的振幅，在不同的距离有不同的振幅，但在某些地方振幅等于０．

麻省理工公开课 - 化学原理课程节选

Those who do not, like Marissa Mayer, are standing against a historical wave that is likely to prove too powerful for any company or CEO to overcome.

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Even a deal in which Goldman neither admitted to nor denied committing fraud in the Abacus deal would damage the 141-year-old firm's standing with clients and increase the likelihood of a wave of civil lawsuits.

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The surfer, standing in the tube, or just in front of the break, slides down the wave like a skier, while the wave, and the buoyancy of the surfboard, bear him upwards and forwards.

ECONOMIST: On the beach