ANA
发表于 2025-3-28 17:50:54
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舰旗
发表于 2025-3-28 18:45:39
Building a Design Model,It is hardly possible to give clear and unambiguous recommendations on the choice and building of design models for structures of various purpose which require different structural solutions to be applied. One can do it, apparently, only by confining oneself to a much narrower class of objects. One should remember that “.” .
Gobble
发表于 2025-3-29 00:25:52
Basic Relationships for Discrete Systems,Many facts stated in this chapter are well known and one might think there is no need to discuss them. But we believe it is an interesting idea to reveal certain interconnections between those facts, and this idea is not often expounded as here.
Mutter
发表于 2025-3-29 05:42:13
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放大
发表于 2025-3-29 07:41:10
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