repeating optical transit
复测光学经纬仪 repeating optical transit ; repetitionopticaltheodolite 电子测距光学经纬仪 electronic distance meter theodolite 光学经纬仪 微米经纬仪 micrometerin...
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repetition optical theodolite
repeater optical transit 复测光学经纬仪 repetition optical theodolite 复测光学经纬仪 resonant optical Faraday rotator 共振光学法拉第转子; 法拉第光谐振旋转器 ..
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