对边

The basic steps of this method are as follows.The firststep is to derive a necessary condition such that the families of quasipolynomials withone parameter,corresponding to the edges of the polytope,have pure imaginary rootsby using the Dixon's resultant for polynomials.Then to check that the casescorresponding to the parameters obtained in the first step are in fact impossible byusing the generalized Sturm criterion and some stability criteria.

其基本思路是先利用多项式方程组的Dixon结式理论导出使各棱边对应的单参数特征拟多项式有纯虚根时，参数值应满足的一个等式条件，即所谓的Dixon结式等于零，然后由广义Sturm判别法验证对所有参数值，Dixon结式不等于零，或使结式等于零的解不产生特征拟多项式的纯虚根。

She cooed at one of the cats purring at her feet.

她对在脚边其中之一只叫着的猫儿温柔地说。

This paper reviewed the advances of noise barrier structure in China, and illustrated the development of multiple-edged, T-shaped and Y-shaped top structures used for noise barriers abroad. The development of some new top structures, such as soft surface, quadratic residue diffusers surface of noise barriers was also introduced.

作者对国内声屏障结构形式的现状进行了分析，介绍了国外常见的多重边、T型、Y型等顶部结构的发展情况，同时介绍了声学软表面、平方余数序列表面等新型顶部结构的发展状况。

The nonlinear equations are dealt by the quasi linear iteration equation,at last,by the orthogonal discrete method,the solutions of the initial problem are obtained.

本文建立的载流板壳二维磁弹性问题的数值计算方法——差分正交离散法不仅对二维问题有效，同样也为三维磁弹性的边值问题的解决奠定了理论基础。

Firstly, the mapping of high level programming language to hardware description language is described, some principles of the conversion of algorithm to state machine are also proposed; Secondly, the basic raster graphics algorithms for drawing 2D primitives are introduced, including self-adaptive algorithm of singl...

首先讨论了高级语言描述到硬件描述语言的映射，提出了算法到算法状态机抽象的规律；然后，介绍了现有的基本图形生成算法，包括直线的自适应算法、三角形边相关扫描算法，宽直线线刷子算法及改进的圆形、椭圆的生成算法，同时讨论了加速算法的研究现状；接下来具体讨论了基本图形的硬件实现，给出了各算法的状态机流程图、接口定义和实现框架，并且从理论角度给出了二次曲线加速算法的证明；最后采用EDA工具对VHDL程序进行仿真、综合并实现。

In the paper, up to 4 power of polynomial solutions of plane elasticity are used to interpolate the element dispacement and the 8-node curve quadrilateral rational finite element RCQ8 is derived. Examples show that, it can avoid shear locking and volume locking, and has high accuracy, high efficiency and good stability.

本文采用最高至4次的平面弹性力学的多项式解对单元位移插值，推出了八节点曲边平面理性元RCQ8，若干算例表明，本单元可以避免剪切自锁和体积自锁，具有很高的精度和效率以及数值稳定性。

The paper discusses the weakest side of the control system, presents the idea that when arbitrarily selecting the different reckoning routes, the calculated weight reciprocal values of the same side are identically equal, and confirms the weight reciprocal of the function is unique and obtainable.

该文对控制网最弱边进行了探讨，提出了任选不同的推算路线，计算同一边的权倒数值恒等，确定了函数的权倒数是唯一和可求的。

Based on this, the mechanism and regularity of slope the displacements due to rainfall have been discussed.

在此基础上，对降雨引起的边坡位移机制、规律进行了探讨。

Limb imaging spectrometer is an important new remote sensor for research and application of atmospheric remote sensing.

临边成像光谱仪是一种对大气遥感探测有重要研究和应用价值的新型空间光学遥感仪器。

Adopting gabions set in the bottom of the revetment works to protect engineering from erosion is necessary.

试验数据分析表明裹头工程根部设置铅丝石笼防护带，对保护工程、减轻边岸冲刷非常重要。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。