Clinton
发表于 2025-3-21 16:53:24
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Encephalitis
发表于 2025-3-22 00:05:33
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alabaster
发表于 2025-3-22 03:12:24
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Enervate
发表于 2025-3-22 08:10:28
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Inordinate
发表于 2025-3-22 10:14:01
https://doi.org/10.1007/978-3-642-91971-8e trick to increase contrast and improve image quality. This project typifies the way that ATMs adapt common techniques learned from earlier work in order to attain their aims in constructing a non-standard instrument.
Arthritis
发表于 2025-3-22 13:08:04
https://doi.org/10.1007/978-3-642-91971-8idered to give excellent images at the expense of being long and unwieldy, but this ingenious 110 mm (4.3 in) f/15 folded refractor of simple construction and outstanding optical quality can be packed into a shoebox for transportation.
ACRID
发表于 2025-3-22 20:03:14
https://doi.org/10.1007/978-3-663-20307-0nstrument custom-made by a manufacturer. Terry Platt’s telescope is an excellent example of an instrument being built to meet a specific need which could not be met by commercially available instruments. He uses this 318 mm (12.5 in) f/20 unobstructed reflector for planetary CCD imaging.
在驾驶
发表于 2025-3-22 22:48:44
https://doi.org/10.1007/978-3-663-20307-0rved focal surface and, because this surface is at prime focus, it does not afford a visual preview. This 146 mm (5.75-inch) f/3.9 Wright has several advantages over a Schmidt. It has flat focal plane and is significantly shorter (roughly half the size of an equivalent Schmidt). In its Newtonian for
cinder
发表于 2025-3-23 02:20:52
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chance
发表于 2025-3-23 07:15:52
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