分子进化分析发现，同属的微孢子虫可以处于系统进化树不同的分枝。
Molecular evolution analysis indicated that the microsporidia which even belonged to same genus could be classified to different branch.
本文研究了一类三次系统无穷远点的中心条件与赤道极限环分枝问题。
Studied in this paper are center conditions and bifurcation of limit cycles from the equator for a class of cubic polynomial system.
非线性系统辨识和控制是一个复杂而又非常重要的研究领域，其中模糊系统辨识及其控制研究是一个重要的分枝。
Fuzzy system identification and control is an important branch of the identification and control of general nonlinear system that is a complex research field.
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