英语词汇“photoelectric guiding device”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	photoelectric guiding device
释义	Photoelectric Guiding Device Photoelectric Guiding Device in astronomy, a photoelectric accessory that automatically guides a telescope. Such a device automatically keeps in the telescope’s field of view an observed heavenly body that is moving because of the apparent diurnal rotation of the celestial sphere or that is actually moving relative to the fixed stars.
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Photoelectric Guiding Device