... effective annual interest rate 实际年利率 effective breeding population 有效育种群体 effective center 有效中心 ...
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That number is smaller than current figures for the effective population size (or number of breeding individuals) for endangered species such as chimpanzees (21, 000) and gorillas (25, 000).
当时的人数甚至不及现在濒临灭绝的黑猩猩(21000头)和大猩猩(25000头)的有效种群大小(即能生育的个体数量)。
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