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苏修在北极地区试验了用激光和非相干光作光源的光学测距仪。目的之一是研究低温的影响。结果发现,将测距仪安装在汽车或卡车顶部专门设计的房间内,或加热特有
Su Xiu experimented with an optical rangefinder using laser and incoherent light as a light source in the Arctic. One of the purposes is to study the effects of low temperatures. The results showed that the range finder installed in the car or truck specially designed room at the top or heating unique