This is called rotational grazing, and we received a question from Zhang Guohui in China about how it works.
VOA: special.2009.01.06
So there was a good question in Wednesday's class about the de Broglie wavelength and if it can actually go to infinity.
在周三的课上有个关于德布罗意波波长的问题,非常好,就是它能不能到无穷大。
and follow it with the question that you want to find out about.
在后面加上你想要了解的问题就可以了。
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