也许u型轨迹只是外部环境造成影响的一种表示方法。
Perhaps the U-bend is merely an expression of the effect of external circumstances.
服务型企业经营的内部环境因素和外部环境因素对企业选择国际市场进入模式有很大影响。
It has great influence that the internal environmental factor and external environmental factor makes the choice of entry mode for service firms to international market selects international market.
线性二次型优化设计可以满足系统的静态性能指标要求，而滑模变结构控制抑制了外部干扰的影响，并保证了系统的快速动态响应。
The LQR design makes sure the system performance index is satisfied, while the sliding mode control restrains the disturbance exterior, as well as makes sure fast dynamical response.
线性二次型优化设计可以满足系统的静态性能指标要求，而滑模变结构控制抑制了外部干扰的影响，并保证了系统的快速动态响应。
The LQR design makes sure the system performance index is satisfied, while the sliding mode control restrains the disturbance exterior, as well as makes sure fast dynamical response.
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