这是一个可以在任何桌面或其他表面投射激光的虚拟键盘。

This is a virtual keyboard with laser impressions on any table or other surface.

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幸运的是，当今年冬天风暴云聚集的时候，携带激光的研究人员可以首次进行反击。

With luck, as the storm clouds gather this winter, laser-toting researchers could, for the first time, strike back.

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这种激光器允许激光的多频率调谐。

This laser design allows for broadband tuning.

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And then since we have my red laser pointer, we will also try with the red laser pointer, which is centered at wavelength of 700 nanometers.

然后因为我们有我的红色激光笔，我们也可以用它试一下，它的波长集中在700纳米处。

麻省理工公开课 - 化学原理课程节选

Intensity, if we increase the intensity, we're not increasing the energy in each photon, we're just increasing the number of photons that we're shooting out of our laser, whatever our light source is.

强度，如果我们增加强度，我们增加的不是,每个光子的能量，我们增加的仅仅是,从我们激光源射出的光子数，无论我们的光源是什么。

麻省理工公开课 - 化学原理课程节选

This angelic laser begins slowly the gradual process in some kind of extraordinary science-fiction sort of way of transforming the virginal human body to the essence of the soul itself.

这天国的激光开始了这渐渐的过程,用一种很特别的科幻小说的方式,把人纯净的身体变成灵魂的精髓。

耶鲁公开课 - 弥尔顿课程节选