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Based on Wu's elimination method and "divide-and-conquer" strategy, the undetermined coefficient method for constructing polynomial conservation laws of nonlinear differential-difference equations was improved. Furthermore, a Maple package CLawDDEs was developed to automatically derive conserved densities and associated fluxes of polynomial differential-difference equations.

基于吴消元法和"分治"策略，改进了基于标度不变性构造非线性微分差分方程多项式形式守恒律的待定系数算法，并在计算机代数系统Maple上实现了改进后的算法，其中的软件包CLawDDEs可自动推导出微分差分方程的守恒密度及连带流。

In the uniform color space, the color-difference formula can basically reflect the visual difference of color.

在均匀颜色空间，色差公式基本上能够准确反应颜色的视觉差异。

To eliminate common-mode voltage of cascaded multi-level inverter, three kinds of phase-difference SVM based on left and right bridge vectors are proposed firstly. From these three modulations, equivalent SPWM components are deduced, and the unipolarity and bipolarity of output waveforms are analyzed. 2π/3 PD-SVM (phase-difference space vector modulation) is testified be unipolar.

为消除级联型多电平逆变器的输出共模电压，首先提出了基于左、右桥臂矢量的三类相差空间矢量调制(space vector modulation，SVM)技术，数学推导出三类调制技术的等效正弦脉宽调制(sine pulse width modulation，SPWM)的调制波，并分析了其各自相电压输出波形的单、双极性，证明2π/3相差SVM必为单极性调制。

A method is provided for panoramic video stabilization by using an angle sensor, which comprises the following steps of (1) obtaining an initial rotation angle by using the collecting unit of the angle sensor before video capturing;(2) allowing the angle sensor to work synchronously with a video capturing device, and obtaining the rotation angle data of each frame of captured panoramic video;(3) if the video capturing device jitters or rotates, calculating the difference between the rotation angle of the current video frame and the initial rotation angle;(4) correcting the current video frame by using the calculated difference in rotation angle, thereby implementing the video stabilization of the panoramic video capturing device.

一种利用角度传感器纠正全景视频采集抖动的方法，其步骤为：(1)在视频采集前，先使用角度信息采集单元获取一个初始旋转角度信息；(2)在视频采集过程中，角度传感器与视频采集装置同步运动，每采一帧全景视频都获取所采这帧的旋转角度信息；(3)如果全景视频采集设备发生抖动或旋转，计算出当前所采的视频帧的旋转角度信息与初始旋转角度信息的差值；(4)利用这个旋转角度信息的差值对当前所采的视频帧进行纠正，实现全景视频采集设备视频抖动的处理。

According this, the thesis broadens the content of the Union of Nature and Man, and pointed that it should be built on full understand on nature and man, acknowledge nature"s inherent value, definite man"s responsibility to nature, then stress difference in unit and unit in difference. On the basis of it, the Union of Nature and Man world outlook is set up, which may be useful to transform Mans concept of environment and morality, and to promote perfect rules and international collaboration, and to set up right development view, and finally realize the harmony between nature and man.

据此，本文拓展了"天人合一"的内涵，明确指出"天人合一"思想应当建立在对自然界和人类自身的充分认识之上，承认自然的内在价值，肯定人对自然负有责任，在差别中强调合一，在合一中强调差别，并在此基础上，树立天人合一自然观，以从根本上改造人们的环境意识和道德观念，促进制度完善和国际协作，建立正确的发展观，最终实现人与自然的和谐共生。

That leaves room for an unmeasured but discernible human difference, a difference that inspires great literature, art, and our lives as a whole.

这为人类只可意会、不可言传的差异留下了发展空间。这种差异激发出伟大的文学、艺术和我们的生活，使之成为一个整体。

In the χ2 test of the sex difference of college students' mental health,the difference of UPI was significant...

结论两种量表测量大学生心理健康状况的作用不同，但两者可以相互结合使用，能够提高筛查效率。

Inference and Hypothesis Analysis of Two Populations - including Difference of the Mean, Ratio of the Variance, Difference of Proportions.

推理和假设分析两个种群-包括不同的平均，比例的差额，差额比例。

The characteristic of engine working at different mounting way and different environment is analyzed. Selecting pump pressure, speed difference and its variance ratio as input, and current of pump power control and pressure difference control as output, fuzzy control is adopted to improve the power matching and energy saving control method.

分析了在不同安装方式和不同环境下发动机的工作特性，以液压泵的压力，转速差和转速差的变化率作为输入，泵功率控制电流和负载压差控制电流作为输出，采用模糊控制对动力系统的匹配与节能控制方法进行了优化。

The result showed the comparison of the effect of medical decision of hysterectomy pre and post Multimedia Videodisc Device was implemented, there were significant difference in experimental group (t=2.30, p=.00) and no significant difference (t=1.32, p=.53) in control group.

研究结果显示：多媒体影音光碟介入前后研究对象医疗决策比较，实验组前测对后测呈显著差异(t=2.30， p=。00)，对照组前测对后测未呈显著差异(t=1.32， p=。53)。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。