“stable age distribution”的概念、定义、翻译、参考文献-科学参考

单词	stable age distribution
释义	stable age distribution Encyclopedia 理学稳定年龄分布释 stable age distribution稳定年龄分布如果出生率和死亡率保持不变，则种群各年龄级个体的相对比例不随时间而变化的年龄分布。
随便看	sampling survey system of main livestock and poultry farming sampling system sampling technique of continuous random variables sampling technique of discrete random variables sampling technique of random process sampling technique of random vectors sampling test sampling theorem sampling theory sampling unit sampling up-the-ramp sampling with arbitrary probability sampling with equal probabilities sampling with equal probability sampling with non equal probabilities sampling with non-equal probabilities sampling with nonequal probabilities sampling without replacement sampling with PPS sampling with probabilities proportional to size sampling with probability proportional to size sampling With replacement sampling with replacement sampling with unequal probabilities samploscope

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