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草原灾害
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草原灾害
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草原灾害
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grassland disasters
草原灾害
对草原生产、再生产过程及其生态系统的稳定性造成极大危害的环境因素、生物因素变异和人为因素干扰,给人类造成的经济、生态和社会损害的现象和事件。
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covalent graph
covalently bonded network
covalently closed circular DNA
covalently regulatory enzyme
covalent modification of regulation
covalent network
covalent organic framework polymer
covalent organic polymer
covalent radius
covariance
covariance analysis
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covariant continuation
covariant curvature tensor
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