英语培训；顾客感知服务质量；交互质量；服务质量差距。
English training; Customer Perceived Service quality; Interaction quality; Service quality gap.
主要介绍了基于算子理论的非线性系统互质分解方法及其理论。
In this paper, the method and theory of coprime factorizations of nonlinear systems based on the operator theory are introduced.
研究了存在未知外部干扰时的互质因子摄动系统的鲁棒稳态追踪问题。
The robust steady-state tracking problem subjected to coprime factor perturbations and unknown external bounded disturbance is addressed.
本文从服务质量的关键要素交互质量入手，探讨改善服务质量的途径和方法。
This article start from the key elements of the service quality that is interaction quality, do the exploration of ways and met.
著名的孙子定理在模两两互质的条件下，给出了同余式组的公共解的表达式。
Famous Sun Zi Theorem Theorem has given the expression of common solution for the group of co-remained equations under the condition of the module with coprime two by two by two.
本文从服务质量的关键要素交互质量入手，探讨改善服务质量的途径和方法。
This article start from the key elements of the service quality that is interaction quality, do the exploration of ways and methods to improve the service quality.
因此，利用互质增量时间戳技术就可以较好地解决了移动代理系统中的一些安全问题。
So using increased time stamp technology can solve some security problems about mobile agent system better.
本论文主要考虑外部干扰存在时的乘摄动与互质因子摄动下的最优鲁棒稳态跟踪控制问题。
The paper mainly consider the robust steady-state tracking problem when the system under consideration is subject to multiply and coprime factor perturbations as well as external disturbance.
第二种通过右互质既约分解，给出了通解关于一组自由参量和矩阵j的特征值的显式表达式。
By utilizing some right coprime fractions, the second solution is given in an explicit form with respect to the free parameter vectors and the eigenvalues of the matrix J.
论文中给出了控制器之所以会失去鲁棒性，是因为弱阻尼模态增大了互质因子摄动的范数，从而缩小了模型的实际允许摄动范围。
It is indicated that the low damping mode can augment the norm of the coprime factor perturbation and as a result the domain of the actual admissible perturbation is reduced.
对双基线系统余数定理解模糊原理作了分析，提出了虚拟阵元概念，清晰地解释了基线长度之比为互质数之比的多基线系统的相位解模糊能力。
The principle for resolving ambiguity in dual baseline system is analyzed by using theorem of remainder and the concept of imaginary array is presented.
首先讨论了真镇定带前通的广义系统的最小阶正常观测-控制器的设计问题，然后基于降阶观测-控制器，明确给出了广义系统双互质分解的一种新的状态空间实现。
The design problem of minimal order observer based controllers for properly stabilizing a singular system with direct control feed through term is discussed, and a design method is given.
首先讨论了真镇定带前通的广义系统的最小阶正常观测-控制器的设计问题，然后基于降阶观测-控制器，明确给出了广义系统双互质分解的一种新的状态空间实现。
The design problem of minimal order observer based controllers for properly stabilizing a singular system with direct control feed through term is discussed, and a design method is given.
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