无表情
发表于 2025-3-25 06:10:51
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palliative-care
发表于 2025-3-25 09:53:39
Applying Exterior Siding and Interior Wall sheathinge to you. Most have a 1-in. nominal thickness (actually ¾′ thick) and are usually installed vertically. If you are planning to use wood board siding you will have to install blocking at midspan between the wall studs to nail the boards to, since you would only have the sole plate at the bottom and the double top plates at the top.
Blatant
发表于 2025-3-25 12:10:55
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使乳化
发表于 2025-3-25 16:15:16
Observatory Design ConsiderationsThe focal length of the telescope combined with its type of mounting are primary factors to consider next. The optical configurations of existing and future instruments planned for are equally important whether refractor, Newtonian, or Schmidt Cassegrain models. The walls surrounding the observatory
爱哭
发表于 2025-3-25 21:56:16
Options for Foundation Types and Laying Out the Observatory “Footprint”re ready to begin construction. Again, I cannot stress enough the importance of building an observatory that you will not outgrow. The observing limitations you experience today will not be what you can tolerate tomorrow. Larger aperture instruments will be within your economic grasp and larger CCD
英寸
发表于 2025-3-26 03:22:50
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GROSS
发表于 2025-3-26 04:50:31
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媒介
发表于 2025-3-26 09:49:51
Framing the Roof and the roof trusses built upon it. Otherwise, the roof could be constructed on a “bench” of sawhorses and lifted into place. This is an extremely difficult operation without the assistance of a crane, because the walls of the observatory (including foundation) are too high for a crew of people to
Self-Help-Group
发表于 2025-3-26 15:44:35
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易弯曲
发表于 2025-3-26 20:52:49
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