不变

In chapter 2. to two classes of specific systems in engineering, we make researches into stability with respect to their own invariant sets through the theoretic techniques of HDS. And then we bring forward sufficient conditions of uniform asymptotic stability and exponential stability with respect to their own invariant sets in the sense of Lyapunov.

第二章针对实际工程之中的两类具体系统用混合动态系统的理论方法对其关于不变集的稳定性进行了研究，提出了它们关于各自的不变集在Lyapunov意义下一致渐近稳定、指数稳定的充分条件。

Always the same, as in character or degree; unvarying.

相同的；一贯的；不变的总是一样的，如在性质或程度上：不变的

The measurement results show that the intensity increases rapidly with discharge voltage at a lower voltage range, but the speed slows at the higher voltage range, for constant gas pressure of 130 Pa; and the intensity increases backwardly with gas pressure at constant discharge voltage of 6.4 kV.

实验数据显示，保持气体压强p=130 Pa不变，在电压较低时，光谱强度随电压增长较快，在电压较高时，光谱强度增长较慢；保持放电电压U=6.4 kV不变，光谱强度随气压增长逐渐变小。

If response rate is fixed or accelerate, differentiation ability changeless or rise, explain coriaceous rehabilitation is good.

如反应速度不变或加快，分化能力不变或提高，说明皮质机能恢复良好。

But whereas you possess it from blind kittenhood to that last dark day so mercifully short with you, we grasp it only for a very little while

不过，你们从懵懵懂懂、活蹦乱跳的幼年到幸好极其短暂的那个倒霉的末日，都保持着安宁而不变，而我们把握住安宁而不变，而我们把握住安宁的时间却极其短暂。

Great Rivers Network User lasa: change the location, change the lines on the map, which outlines the signs of urban change; not changed is latitude and longitude, changing the size area on the map, it has shown a rapid urban blocks expansion and iconic urban development, key projects has increased.

大河网网友lasa：不变的是地理位置，变化的是地图上的线条，它勾勒出城市变迁的痕迹；不变的是经纬度，变化的是地图上的区域大小，它呈现出城区板块的迅速扩大和标志性城建、重点工程的增多。

After converting input color images from RGB to YIQ color space and obtaining I component images, the system scales and scans the whole images and thresholds them to extract skinlike regions that may contain human faces.

首先把输入的彩色图像从 RGB转换到 YIQ颜色空间，提取与人的肤色相关的 I分量图像，通过对整幅 I分量图像进行尺度变化和窗口扫描，解决待测人脸的位置、大小不同问题，实现平移不变和尺度不变。然后对 I分量图像进行门限化处理，提取 I分量图像中可能包含人脸的接近人的肤色的区域。

With this systematical object observe plan , and unlimited long lasting actual observing time , it aims to solve the problem of unexpectable climate and bad weather locally .

以无限周而复始的观察时间，规泛条理和固定的目标观察计划，刻服不定的天气不竟情况，以不变应万变之道所在。

Based on that, two particular indentities of unitarily invariant metrics are obtained.3 Perturbation analysis of the canonical subspaces: This paper gives the least perturbation bound of the unitary factor on the unitary decomposition.

并利用C-S分解，给出了这类新的酉不变度量的上下界。由此，得到两个特殊的酉不变度量的恒等表达式。3 标准子空间的扰动分析：本文给出了矩阵的酉分解中酉因子的最小扰动界。

Based on the theory about nonlinear normal modes and normal form, a method of normal mode invariant manifolds for the analysis of simple Hopf bifurcating solutions is presented.

基于非线性模态不变流形及范式理论，针对一类非线性结构振动系统和机电耦合系统，提出一种分析其简单Hopf分叉解的模态不变流形方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。