purulent
发表于 2025-3-21 16:15:38
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defeatist
发表于 2025-3-21 22:54:11
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具体
发表于 2025-3-22 03:19:15
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BATE
发表于 2025-3-22 05:36:52
nationenvergleichenden Forschung anknüpfen, der in den 60er Jahren hauptsächlich von Soziologen entwickelt wurde. Die erste Generation der vergleichenden Forschung zur Erwerbsbeteiligung stand im Zeichen der älteren Modernisierungs- und Konvergenztheorie. Dieser Schule zufolge war das Niveau der ök
油膏
发表于 2025-3-22 09:37:02
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逃避现实
发表于 2025-3-22 13:15:44
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Hemiplegia
发表于 2025-3-22 17:43:16
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消毒
发表于 2025-3-22 21:17:54
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聪明
发表于 2025-3-23 01:45:53
Earthfill Dams, These are being constructed since early days of civilization to store water for irrigation and domestic use. Until modern times all earthfill dams were designed by empirical methods. Rapid advances in the science of soil mechanics has resulted in development of improved procedures of design and construction.
不朽中国
发表于 2025-3-23 08:36:55
Foundation Treatment of Dams,are homogeneous earthfill dams, zoned type earthfill dams and rockfill type which are either CFRD or ECRD type. Dam foundations can be of varied type. Basically these are classified as rock type or alluvium type.