... infinite body ==> 无限物体 infinite branch ==> 无穷分枝 infinite bus ==> 无限大容量母线=>无限大母线 ...
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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.
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