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- integrable quadratic system 可积二次系统
- The Density of Algebraic Curve Homoclinic Cycle for a Symmetric Integrable Quadratic System 平面对称可积二次系统的代数曲线同宿环的稠密性
- In this paper, we prove that the real quadratic system with one real straight line solution and two conjugate complex straight lin solutions is integrable system, so it do not has any limit cycle. 本文证明了具有一条实积分直线和一对共轭复积分直线的实二次系统都是可积系统;因而不可能存在极限环.
- The quadratic system in space with a first integral of quadratic cylinder is discussed. 摘要继续讨论以二次柱面为首次积分的空间二次系统。
- When the frist grade flexible mode and the rigid mode are intercepted the flexible manipulator is transformed into a quadratic system. 基于柔性臂简化的二阶线系统模型，指出前馈延时控制在本质上是一种零极点对消技术，得到了零极点对消应满足的条件。
- The results prove that DF could simplify the solve process and its shortcoming of restriction in approximately denotation, frequency unitary 1 and inapplicability in more commonly quadratic system are also shown at the same time. 结果证明：使用描述函数法能够简化该问题的求解，但也暴露出其存在着近似表示，频率归1以及更一般二阶系统不适用等方面的局限和不足。
- On Quadratic System with a Two-fold Parabola Solution 具有二重抛物线解的二次系统
- Phase Portraits for a Class of Planar Quadratic System 一类平面二次系统的相图
- Linearizable Conditions of a Class of Quadratic System 一类二次系统可线性化的条件
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
- The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
- Asymptotic stabilizable domain of quadratic system 二次系统的渐近镇定域
- Do you know how to log in to the system? 你知道怎么登录进入这个系统吗？
- Public opinion was against the old feudal system. 公众舆论反对旧的封建制度。
- The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
- The drainage system has been aged. 排水系统已经老化了。
- They called for a radical reform of our tax system. 他们要求对税收制度进行根本改革。
- This is a highly efficient new heating system. 这是个高效的新取暖系统。
- He's mute on the subject of social system. 他对社会制度的问题保持沉默。
- He said he used this system in the year dot. 他说他很久以前用过这个系统。
