平面

If you are in a vehicle,(not in a plane or something like that) press H+O to active the car options menu.

如果你是一个车，（而不是在一个平面或者类似的东西）记者氢离子O以积极的赛车选项菜单。

A mathematics model of comprehensive security control is formed by taking the total cost of control actions as the objective function and taking inequalities of hyperplanes as transient stability restrictions, and a optimization strategy called "the active restriction relaxation approach" is proposed which can classifies the contingency sets into two subsets.

以综合控制总成本为目标函数，以超平面形式的不等式为暂态稳定约束，该方法把安全性综合控制问题归结成了一个最优化问题。

A simple machine for elevating objects; consists of plane surface that makes an acute angle with the horizontal .

提升物体的简单机械；具有与水平面成锐角的平面。

A simple machine for elevating objects; consists of plane surface that makes an acute angle with the horizontal.

提升物体的简单机械；具有与水平面成锐角的平面。对整个群体或空间进行宽角度拍摄时，按减号键来拉远

In addition, the Lyapunov theorem is applied to have the asymptotic stability of the closed loop system with system parameters updated on line.

控制器便能依据当时振动情况，主动产生出反振动讯号输出给伺服马达，让控制系统进入至滑动平面来达到控制的目的。此外，理论中还使用了 Lyapunov 稳定法则来确保控制过程中之渐进稳定性，并更新系统所需之参数。

Using the exterior expression for the Graf′s addition theorem, the closed form solution for scattering of plane SH waves by circular inclusion in half-space is given in the paper. The effect of the inclusion on the surface ground motion is ellustrated and the effect region of the scattering field from the inclusion is analyzed.

文中利用Graf加法公式的内域型表达给出了半空间内含圆形夹塞区出平面散射的封闭级数解答，讨论了夹塞区散射场对附近地表运动的作用，并特别分析了这一作用在地面上的影响范围。

Also using the exterior expression for the Graf′s addition theorem, the exact solution for scattering of plane SH waves by circular arc alluvial valley is presented in the paper. From the numerical results the complex effect of the depth-to-width ratio of the alluvial valley on the surface ground motion is found.

利用Graf加法公式的外域型表达，本文还给出了任意圆弧型沉积盆地出平面散射的精确级数解答，提供了大量数值结果并指出了盆地深宽比对地面运动的复杂影响作用。

The above results proved that atrazine could be inserted into the double-helix of DNA and formed a stable DNA adduct.

以上实验结果表明，莠去津平面分子能够嵌插到DNA双螺旋链中，形成较稳定的加合物。

In this research, an axisymmetric finite element model of pull-off test for an incompressible elastic layer adhesively bonded with a rigid flat probe was built using ABAQUS.

在本篇研究中，不可压缩之弹性层与平面探头的轴对称有限元素拉拔模型将使用ABAQUS来模拟，而界面的黏著特性则使用黏著元素。

As the foundation of ultrasonic testing of composite materials, this thesis is intended to explore in detail a number of features of wave propagation in anisotropic plates, and the following essential problems will be considered:(1) Propagation of plane bulk waves in homogeneous and orthotropic anisotropic media;(2) Lamb wave propagation in multilayered anisotropic plates;(3) Influence of isotropic solid or liquid loading on Lamb wave propagation in anisotropic solid media;(4) Influence of interface layers on Lamb wave propagation in layered anisotropic composite laminates;(5) Dispersion characteristic analysis of attenuation Lamb wave while existing an thin viscous layer which is used for simulating the poor curing in adhesively bonded joints.

作为复合材料超声检测的基础，本文研究了如下国际前沿性的课题：（1）平面体波在正交均匀各向异性媒质中的传播；（2）多层各向异性媒质中Lamb波的传播；（3）各向同性固体或液体负载对各向异性固体媒质中Lamb波传播的影响；（4）界面层对层状各向异性复合媒质中Lamb波传播的影响；（5）胶粘剂未固化而呈现粘弹性时粘接结构中衰减Lamb波的频散特性分析。

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。