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农田生态经济系统
释义
农田生态经济系统
Encyclopedia
理学
农田生态经济系统
释
farmland eco-economic system
农田生态经济系统
在一定地域范围内,生态要素和经济要素以农业技术和管理要素为中介,通过物质流、能量流、价值流等形成的具有一定空间和时序结构的、开放的自然-社会-经济复合系统。
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harmful consequences
harmful elements of plants
harmful food additives
harmful gas
harmful gases in military artificial environments
harmful gases in swine building
harmful herding
harmful information on internet
harmful integrated temperature
harmful mammals in forest
harmful microorganisms in military artificial environments
harmful phase precipitated during long term aging of superalloy
harmful tissue reaction
harmful use
harmless treatment of animal debris
harmless treatment of livestock manure
harmodotron
Harmonia
Harmonia axyridis
harmonic
harmonica
harmonic addition theorem
harmonically conjugate functions
harmonically conjugate points
harmonic analysis
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