如果一个物种两性之间体型相差较大，就称为二态性较高。
n. dimorphism
本文先给出一般性结果，然后分析了二部件三态系统。
We first gives the general results, and then analyse two component three state system.
基于熵率上下界收敛性，该文提出了一个算法以计算二态隐马尔可夫过程的熵率。
Based on the convergence of bounds for the entropy rate of binary hidden Markov processes, a numerical approach is advanced.
对于多元正态随机变量二次型的独立性的证明，最重要的是证明一个引理。
It is very important to prove a lemma for the proof of the independence between two quadratic forms of multivariate normal variables.
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