expenditure
发表于 2025-3-21 16:51:40
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Arrhythmia
发表于 2025-3-21 20:29:20
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AXIS
发表于 2025-3-22 03:50:15
https://doi.org/10.1007/3-540-31172-6reases so do the timber sizes, but not necessarily in the same proportion. For instance, in two centres, one of 1 m span and the other of 2 m span, it would be found that the timbers of the largest centre would only be slightly larger than the others, provided each centre had been constructed correc
Detain
发表于 2025-3-22 05:03:35
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忘恩负义的人
发表于 2025-3-22 12:13:39
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怎样才咆哮
发表于 2025-3-22 13:27:18
https://doi.org/10.1007/3-540-31172-6r without any intermediate support; double floors are those that have their joists supported (by beams) between the supports at their ends. In this chapter we shall only deal with single upper-floors made from timber. Although fireplaces are fast disappearing in the upper floors of domestic building
怎样才咆哮
发表于 2025-3-22 20:30:25
Operations Research Proceedings glazed, flush, etc. Except for a few minor details, internal and external doors of each type are constructed similarly. External doors are usually made to a greater thickness than internal doors, the common thickness for external doors being ex 50 mm and that for internal doors ex 38 mm. Of course,
假
发表于 2025-3-22 23:28:22
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Visual-Acuity
发表于 2025-3-23 04:30:42
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Forage饲料
发表于 2025-3-23 06:29:26
Formwork for Concrete,the product is either made in a factory or on the ground on the site where the item is required. In the latter method the formwork is constructed in the position where the concrete item is actually needed. Let us take one or two examples of each.