Telescopes and Techniques An Introduction to Practical Astronomy【電子書籍】[ C. R. Kitchin ]
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A Buyer's and User's Guide to Astronomical Telescopes and Binoculars【電子書籍】[ James Mullaney ]
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Strange Telescopes Following the Apocalypse from Moscow to Siberia【電子書籍】[ Daniel Kalder ]
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Eyes in the Sky: Space Telescopes from Hubble to Webb EYES IN THE SKY [ Andrew May ]
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Earth's Most Powerful Telescopes | Optics for Grade 5 | Children's Physics Books【電子書籍】[ Tech Tron ]
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Explore Telescopes EXPLORE TELESCOPES (Lightning Bolt Books (R) -- Exploring Space) [ Lola Schaefer ]
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