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自然系统
释义
自然系统
Encyclopedia
理学
系统学
释
natural system
自然系统
以天然物为要素,由自然力作用所形成的系统。又称天然系统。是指那些不受到人为干扰或影响,或者人为干扰或影响比较小的系统。
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fisheries labor force
fisheries labor productivity
Fisheries law of the People’s Republic of China
fisheries laws and regulations
fisheries licensing system
fisheries management
fisheries migratory channels protection
fisheries mutation breeding
fisheries observer
fisheries oceanography
fisheries of oceanography
fisheries population equilibrium
Fisheries Research Agency
fisheries research institutes at provincial levels
fisheries resource assessment counting method
fisheries resource assessment swept-area method
fisheries resources cultivation and protection fee
fisheries resources property rights
fisheries resource strategy management
Fisheries Science
fisheries science and technology progress
Fisheries Science & Technology Information
fisheries seasoning sauce (oyster sauce, shrimp paste, crab sauce)
fisheries spices
fisheries spices processing technology
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