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活动温度
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活动温度
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活动温度
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active temperature
活动温度
植物或变温动物生育阶段内大于或等于生物学零度或生物学下限温度时的温度。常用日平均温度表示。某段时间活动温度对时间的积分即为活动积温,单位是℃•天。如统计一日内某时段的活动积温,单位为℃•小时。生物学零度或生物学下限温度见三基点温度。
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