cardiovascular
发表于 2025-3-25 06:09:20
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率直
发表于 2025-3-25 11:29:11
A chapter of accidents — rgy . be released; but it is the business of a structure to delay such events for a season, for a lifetime or for thousands of years. All structures will be broken or destroyed in the end — just as all people will die in the end. It is the purpose of medicine and engineering to postpone these occurrences for a decent interval.
淘气
发表于 2025-3-25 11:54:42
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VAN
发表于 2025-3-25 16:01:00
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STIT
发表于 2025-3-25 23:31:39
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不可磨灭
发表于 2025-3-26 00:25:01
Why structures carry loads . It lies at the root of the whole study of structures and is intellectually difficult. In the event, it proved too difficult for Galileo, and the credit for the achievement of any real understanding of the problem is due to that very cantankerous man Robert Hooke (1635–1702).
Eviction
发表于 2025-3-26 05:09:06
Tension structures and pressure vessels — though simple unidirectional tension is sometimes to be seen in plants — especially in their roots — the muscles and tendons of animals provide better biological examples and so do vocal cords and spiders’ webs.
ALLEY
发表于 2025-3-26 11:45:03
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大吃大喝
发表于 2025-3-26 12:49:21
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债务
发表于 2025-3-26 20:22:34
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