异龄林经营决策是一个涉及到森林的经济效益和永续利用等多个目标的决策问题。

In this paper, the problem of uneven-aged forest management decision making is considered as a problem of multi-objective decision making.

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对直径生长转移概率矩阵模型进行了线性扩展，用以研究混交异龄林的树种组成问题。

A transfering probability matrix model of linearly generalized diameter growth was used to deal with the tree species composition problem of mixed unevenly aged forest.

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对50日龄的异育银鲫幼鱼投喂甲基睾丸素4个月，再继续饲养182 ~ 335天，诱导出了20 %以上的雄性鱼。

The 50 day old fish were fed diet containing methyltestosterone for 4 months and then reared for 182 ~ 335 days. More than 20% fry developed into males.

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