When he flicks the switch and turns on his lamp, a sensor on his desk downloads music tracks digitally encoded within tiny flickers in the lamp's light.
当他轻按开关打开他的台灯时，灯光在细微闪烁中通过他桌上的传感器，并使传感器下载数字编码的音乐歌曲，然后音乐从附近的一对扬声器里传出来。
You might need to reposition the desk, use a dimmer switch on overhead lights, or lower window shades to keep out sunlight.
你或许需要调整桌子的位置，给顶灯安装调光开关，或者拉下遮光窗帘，把阳光挡在外边。
By simply placing your thumb on a sensor, you can harness enough heat to switch on a small desk-lamp.
只要手指头一碰感应器，就可以利用足够的热气，转换成电能开启小小桌灯。
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