增加三个正弦波可形成一个复合波。

The nonlinear wave shape degenerates to a sinusoidal wave.

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报道声表面波可程序抽头延迟线的研制情况。

This is the first report about general developing aspect of SAW programmable tapped delay line (SAW-PTDL)in our institute.

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尼日利亚秘密警察表示，波可哈兰一名成员近日从索马里赶回以指导此次袭击。

The Nigerian secret police say that a member of Boko Haram recently came back from Somalia to oversee the attack.

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So, what this means is that when we're looking at an actual wave function, we're treating it as a wave, right, so waves can have both magnitude, but they can also have a direction, so they can be either positive or negative.

这意味着,当我们看一个波函数时,我们把它看做一个波，波不仅有幅值，还有方向，所以它们可正可负，如果。

麻省理工公开课 - 化学原理课程节选