控制系统采用紫外线传感器和光敏电阻组成对太阳光线的探测器，实现了太阳电池组件对太阳的跟踪。
In its control system, the ultraviolet radiation sensor and photoresistor are used to form a detector to track the sun with solar energy modules.
“先驱者号”太空探测器上装有紫外线仪器，能够对在地球上探测不到的光进行测量。
The Pioneer probes have on board ultra -violet instruments which are measuring light that we can't measure on the earth.
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