在室内，这种反光板还有一些额外的好处，可以从两个方向给被摄体打光：直接反射光和天花板发射光。

Indoors, a bounce card like this has the added benefit of throwing light onto your subject from two directions, forward and bounced off the ceiling.

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这种加强型的光束能更能适合光束能量传输，因为接收光束的光伏板可以设计的更小。

Such intense lasers are better suited to power-beaming because the cells that collect the light they deliver can be smaller.

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另一种正在探索的回收热量方式是用类似太阳能电池板的光伏电池捕捉红外线。

Another way to recycle heat that is being explored is to capture infrared with photovoltaic cells similar to those used in solar panels.

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So to be clear, we expect most students to very comfortably pursue the standard edition of the P set, but for this particular P set, and we have about 150 or so of these out on the hallway, and we'll have them at office hours throughout the coming week--this is a little logic board ; with lots of sensors; the sound sensor, a light sensor, a little joystick and the like.

我希望我们大多数同学,研究问题集的标准版本，可编程版有个特殊的问题集，我们会在接下来的几周里，在办公时间为大家做解答,这是个小的逻辑板,上面有很多传感器;,包括声音传感器，光传感器，小操作杆等。

哈佛公开课 - 计算机科学课程节选