Machines are used where they're worth it: at another station, one tests the power output of finished cells with a flash of light before robotic arms place them into bins according to performance.

机器要用在更能发挥他们价值的地方：在另一个车间里，用一道光来检测成品电池的输出功率，然后依据检测结果使用机器手将他们放在箱子里。

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Nanostructures help solar panels absorb light, increasing their power output by 30 percent or more (TR10: Light-Trapping Photovoltaics and solar Cells Use Nanoparticles to Capture more Sunlight).

纳米结构能帮助太阳能电池板吸收光线，提高发电量达百分之三十以上(参见“TR10：光捕捉的太阳光电”和“太阳能电池运用纳米颗粒捕捉更多的阳光”)。

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The experimental result shows that the depth of hardened zone and smoothness of surface can be controlled conveniently by varying the power output beam diameter and scanning rate of laser light.

试验表明：通过调节激光器的输出功率、光斑直径和扫描速度可以方便地控制熔化层深度和表面平整度。

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The output from a single workout is only enough to power a light bulb or a laptop for about an hour and saves between two to six ounces of CO2.

CNN: Virtuous cycles