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log-concavity
对数凹
单峰型问题中的概念。设是一个非负实数序列。如果对任意的0">都满足:,则称序列是对数凹的。
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ecological productivity of grassland
ecological protection engineering
ecological protection of the Sanjiangyuan areas
ecological protection red line
ecological protection redline system
ecological protection tax
ecological psychology
ecological pyramid
ecological race
ecological range of invasive species
ecological reconstruction
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ecological red-line of resources and environment
ecological region
ecological regionalization in China
ecological regulation and management of pests
ecological remediation of contaminated soil
ecological remediation of polluted water
ecological remediation of pollution
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ecological remediation of tailings
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ecological remote sensing
ecological response
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