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海外直订The Principles of Astronomical Telescope Design 天文望远镜设计原则“，
【3-4周达】How to Build an Astronomical Telescope [9781846930430]
海外直订How to Use an Astronomical Telescope: A Beginner's Guide to Observing the Cosmos 如何使用天文望远镜：观察宇
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海外直订How to Build an Astronomical Telescope
【3-4周达】How to Use an Astronomical Telescope: A Beginner's Guide to Observing the Cosmos [9780671664046]
【3-4周达】The Principles of Astronomical Telescope Design [9781441927859]
【3-4周达】The Principles of Astronomical Telescope Design [9780387887906]
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