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国土生态安全
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国土生态安全
Encyclopedia
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national ecological security
国土生态安全
在国家尺度上,生态系统结构合理、功能完善、过程稳定,并能够为人类生存和经济社会发展持续提供良好生态系统服务的状态。
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History of Song Dynasty,block-printed edition,sixth year of the Zhizheng era,Yuan Dynasty
history of Songhuajiang river conservancy
history of sorghum cultivation
History of Southern Dynasties
History of Southern Han
History of Southern Qi
History of Southern Tang
history of Soviet medicine
history of Soviet-Russian psychology
history of soybean cultivation
history of soybean cultivation in China
history of spaceflight in China
history of Spanish mackerel fishing in China
History of Storytelling of the Song Dynasty
history of structural wind engineering
history of sugar beet cultivation
history of sugar cane cultivation
history of sugarcropscultivation
History of Sugata's Doctrines
History of Sui Dynasty
history of sulphuric acid industry
history of Suriname
history of Sweden
history of sweet potato cultivation
history of synthetic ammonia industry
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