Vehicle twin-photoelectrical pointing system mainly consists of reflex light-tubes, a autocollimation theodolite and modulators.
摘要车载双联光电统主要由转光管、自纬仪和相应的调制器组成。
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To get the angles, he had to use these things, theodolites, which weighed about 500 kilos.
为了得角,他用经纬仪,重约500公斤。
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