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格里果里望远镜
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格里果里望远镜
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Gregorian telescope
格里果里望远镜
主镜为凹的抛物面反射镜,次镜为凹的椭球面反射镜的反射式望远镜。
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cathochro tube
cathodal
cathode
cathode breakdown
cathode-degenerated stage
cathode design
cathode electronics
cathode emission
cathode fabrication process
cathode-follower mixer
cathode-grid capacitance
cathode-input amplifier
cathode lock
cathode luminescence
cathodeluminescence
cathode material
cathode modulation
cathode of sodium-ion battery
cathodephone
cathode ray
cathode-ray oscillograph
cathode ray tube
cathode-ray tube
cathode ray tube, CRT
cathode-ray tube, CRT
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