双低单元
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double-low unit
基本单位
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Its net reproductive rate, the intrinsic rate of increase and the increment rate per unit were high, but its generation span and the time of double population size were low.
种群的净增殖率、内禀增长率及周限增长率较高，而种群的世代周期及加倍时间偏低；
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