受约束系统

Choosing a appropriate control a bilinear singular closed loop system can be globally asymptotically stable.

同时，考查了控制受上下界约束时，选择适当的控制，使闭环系统全局一致渐近稳定。

With the Hamilton canonical equation of cylindrical shells, the coupling equation of an elastically constrained circular cylindrical double-shell system is derived.

以圆柱壳的Hamilton正则方程为基础，推导了受弹性约束的双层圆柱壳的耦合方程，并将其应用于大型发电机定子系统的振动特性分析。

Characteristics of axial light intensity of planar wave diffractedby small circular aperture.

陈建农，闫金良，王德法，于永江，"受孔径约束抛物面折射系统的分数傅里叶变换"，中国光学快报 5，

With aperture expanded as the sum of finite complex Gaussian terms, a more practical approximate analytical solution of fractional Fourier transform of Gaussian beam in an apertured paraboloid refracting system is obtained and also numerical investigation is presented.

通过将孔径函数展开为有限项复高斯函数之和，得到了高斯光束在受孔径约束的抛物面折射系统中分数傅里叶变换较符合实际的近似解析表达式，并进行了数值模拟。

The WEA method is a method of synthesizing controller for DES by using weighted enabling arc is applicable to enforce "greater-than-or-equal-to" marking inequality constraint.

WIA方法与已报道的利用抑制弧设计控制器的方法相比，无需搜索整个系统的状态空间，因此在计算效率上具有无可比拟的优势，同时该方法也不受PPIC的约束。

However, on the whole,"road, station, car", as the basic composing factors of the expressway passenger transportation system, have developed lopsidedly in recent years, and the whole system of expressway passenger transportation is far from being perfect and is still in the stage of early development because of the restriction of traditional passenger transportation mode and the influence of separation of administrative regions.

然而从整体上，"路、站、车"作为高速公路客运系统的基本构成要素在我国目前发展极不平衡，加上受传统客运模式的约束和行政区划割据的影响，整个高速公路客运体系还不完善仍处于初级发展阶段。

Perfect optical system dose not be inhibited by physical conditions and every object point has ideal point image.

理想的光学系统是不受物理条件约束的，每个物点都成理想点像。

Because of the strong non-linearity and uncertainty, and as well as the dynamics restraints of autopilots, designing a high performance ship course controller is yet a challenge.

船舶航向控制系统具有典型的非线性和不确定性特性，并受自动舵执行能力的约束，这使得作为船舶智能化基础的航向控制极具挑战性。

The feed motion is projected into each feed axis, and based on its mechanical model(motor driving torque/force, Inertial force and cutting force), the constraint relationship between feedrate, feed acceleration, and feed drive capabilities and toolpath geometric characteristics is derived. With this constraint model, the acceleration and deceleration of each axis can be limited within its capability.

将进给运动分解到各运动轴，根据机床进给轴的力学(电机驱动力／力矩、进给系统所受的惯性力及切削力)模型，推导了多轴联动加工时进给速度、加速度与各进给轴驱动能力以及加工路径几何特性之间的约束关系，使得加工过程中机床各运动轴的加减速始终处于其加工能力范围内。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失