边

Sine Cosine】【cotangent side: angle: side: angle: type of half-angle formula.

边： 角：边：角：边：角：式中。

The dissertation studied the methods of data, pre-process and presented the algorithm of 3D mesh segmentation: Using curvature, vector and the prerequisite feature lines to detect the segment edges, then a region growing method is applied based on those edges is applied to segment the triangle meshes.

本文针对含有扫描数据含有大量噪点这种普遍的现象设计了特征线的优化和修复算法，对于初步提取得到的特征线，通过剪枝、边溃缩，边拆分和边交换等手段，大大减少了结果中的碎片数据，并使获得的曲线更加光顺，达到工业应用的效果。

Many authors posed and discussed some boundary value problems,mainly the Dirichlet problem and mixed boundary value problem for second order elliptic equations with parabolic degeneracy.

许多作者提出和讨论了二阶退化椭圆型方程的一些边值问题，如Dirichlet边值问题和混合边值问题。

The optimizing calculation is based on the reality deformation path and the calculation precise is control by the limit error.

而修改后的切边轮廓再次进行翻边计算，并将其翻边轮廓与目标体轮廓进行比较。

According to the horizontal precision of detail point, it analyzes the horizontal precision of the detail point when using flat, and the horizontal precision of the detail point when using the total station and computer.

从碎部点的平面精度出发，分析了平板测图时碎部点和数字测图时碎部点的平面精度，根据误差传播定律，结合测绘的实际情况，从而推导出两点法已知边推未知边的边长比精度。

Pingbianensis flowers were ants (Aphaenogaster smythiesii Forel,Formicidea), springtail (Hypogastrura sp., Hypogastruridae, Collembola) and one species of beetles (Anomala corpulenta Motsch, Rutelidae). These pollinators generally have restricted movement capacities and hence promote geitonogamy or mating between individuals in close proximity within populations. The results of out crossing index pollination experiments in our study suggest that T. pingbianensis has an animal-pollinated, mixed selfing and outcrossing breeding systems.

通过对屏边开口箭的开花物候、传粉生物学、交配系统的研究以及对近交衰退的检测，结果显示：屏边开口箭单花花期约15天左右，柱头、花粉活力持续时间较长；传粉昆虫多为蚂蚁、跳虫，偶有小甲虫拜访，缺乏长距离传粉昆虫；杂交指数以及套袋试验的结果表明屏边开口箭为高度自交亲和的混交模式植物，且在幼苗早期并没有表现出明显的近交衰退现象。

A strip of frilled or closely pleated fabric used for trimming or decoration.

褶裥饰边：用于镶边或装饰的具有饰边或折皱的布条

The purpose of this research is to investigate the stability influence of side slope from the environment before/after road development in mountain area. Suitable side slope protection practices were chosen at that time according to the damage of the collapse. These practices are box gabion, net-paved plant, pilling and railing, and mortar bond, cantilever retaining wall, gravity retaining wall, etc. The ecosystem environment can be protected and maintained continuously by these practices.

本研究之目的在探讨山区道路开辟前、后环境对边坡稳定影响，并依据崩塌损坏情况，以现场环境条件选择适当边坡保护工法，本区以箱型蛇笼、铺网植生、打桩编栅、浆砌块石等各工法成效，以维护动植物生长环境与维持原生物种栖息环境之生态工法，及依据实地现况因地制宜配合，以悬臂式挡土墙、重力式挡土墙等工法确切保护边坡，维护道路通行安全与顺畅。

In this paper, by using the method of expanding the hard-edge aperture function into a finite sum of complex Gaussian functions, the recurrence propagation expression for the propagation of partially coherent beams through a multiple apertured ABCD optical system is derived, which provides a fast algorithm for simulating the propagation of partially coherent beams through hard-aperture optics.

用有限个复高斯函数之和来逼近硬边光阑窗函数的方法，推导出了部分相干光通过多个硬边光阑ABCD光学系统传输的递推公式，提供了一种模拟部分相干光通过硬边光学系统传输的快速算法。

The authors consider that the rock fault depression, formed by the graben fault block, and the black fracture zone, formed from the structure action of the Cambrian system formation, are characterized by weakness and easy deformation, which are th...

认为，由于"地堑式"断块形成的岩体断陷以及寨武系岩层中的构造作用形成的黑色破碎带，其特性软弱而易变形，是影响边坡稳定性的重要因素。因而，为确定合理的最终边坡角和安全生产及边坡维护提供了可靠依据。

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。