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human providing system
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human providing system
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human providing system
人类供养制
人类社会为保持物种的繁衍,不得不对养育后代这种“人口再生产”规定的一整套社会制度,规定了成年男女各自在养育后代方面的权利和义务,设置了关于下一代人口如何成为成年人的各种规定。
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seawall at the south bank of Qiantang river
seawall in China
seawall in north Jiangsu province
seawater absorption attenuation measuring instrument
seawater ammonia nitrogen measuring instrument
sea water chemical resources
seawater chemistry
seawater circulating cooling technology
seawater cooling technology
seawater culture technology of crustaceans
sea water desalinization
sea water desulfurization
seawater desulfurization technology
seawater direct cooling technology
seawater dissolved oxygen measuring instrument
sea-water drilling fluid
Seawater drowning
seawater encroachment
seawater flue gas desulfurization
sea water gold washing
seawater heavy metal measuring instrument
seawater injection
seawater intrusion
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更新时间:2026/10/27 17:45:34