直角的

A special type of half-plane problems of elasticity is presented and discussed. By using two methods in polar coordinates and orthogonal coordinates respectively, the analytical expressions of stress components are solved in the two coordinates. There are little differences between both results, which confirm the equivalence of the two methods.

针对一类特殊的弹性半无限平面问题，分别给出了其在极坐标系与直角坐标系下的求解过程，获得了在这两种坐标系下应力分量的解析表达式，并对这两种解法的结果进行了比较与讨论。

As a flagship species — one that is popular and the target of conservation efforts — re-establishing oryx populations in the Arabian Peninsula may result in protections for many other species.

作为一种重要物种，一种之前非常普遍的，努力保护的物种，重新在阿拉伯半岛恢复阿拉伯直角羚羊的数量，或许会引起人们对其他物种的保护。

For wedge grafts the cuts are made at a right angle to the crest. Jones[1] et al. have found that full-thickness iliac grafts harvested with a power saw are stronger than those harvested with an osteotome, presumably because of less microfracturing of bone with the saw.

与髂嵴成直角可切取楔形骨块，Jones[1]等发现以动力锯切取的全厚髂骨块的强度要高于骨刀切取的骨块，可能是因为应用骨刀切取对髂骨块可造成更多的显微骨折。

For wedge grafts the cuts are made at a right angle to the crest. Jones[1] et al. hae found that full-thickness iliac grafts harested with a power saw are stronger than those harested with an osteotome, presumably because of less microfracturing of bone with the saw.

与髂嵴成直角可切取楔形骨块，Jones[1]等发现以动力锯切取的全厚髂骨块的强度要高于骨刀切取的骨块，可能是因为应用骨刀切取对髂骨块可造成更多的显微骨折。

Present methods for diluting were briefly introduced, and a new method, selection from point to point, was put forward and demonstrated to be a practical method. In the end,several problems about right-angle processing,deleting redundant points and lines were s imply discussed.

概述了目前已有的几种曲线点抽稀方法，提出了一种新的方法——逐点筛选法，并且用实例证明了它的实用性；最后，简要介绍了进行直角化处理、重复点线的删除以及接边时要注意的问题。

Note that this ratio does not depend on the particular right triangle chosen, as long as it contains the angle A , since all those triangles are similar.

把直角三角形的弦放在直径上，股就是长的弦，即正弦，勾就是短的弦，即余下的弦——余弦。

The application of polar coordinates system in the CNC LATHE-MILLING;2. A fast particle-moving algorithm for particle-in-cell simulation of plasmas in polar coordinates system was proposed, in which the local rectangular coordinates approximation was used in the area near the position of the charged particle at every time step.

提出了一种在极坐标系下快速推进带电粒子的等离子体粒子模拟算法，该算法在每个时间步长内对带电粒子位置附近的区域采用局部直角坐标系近似，并通过坐标变换，得到粒子运动方程求解的显式格式，从而避免了极坐标系下隐式格式直接迭代求解所带来的容许误差，并提高了计算效率。

It proposed that during the structural deformation (about in the Yanshan～Himalaya movement epochs), under the control of the right triangle boundary condition and in the united stress field in which the three boundaries were acted on by three side forces vertical to them at the same time, petroleum/gas substances in the block that had been in fluid/gas state at that time might move driven by high pressure driving from the side parts to the center of the triangle block along with deformation of the rock beds, forming industrial gas fields in the suitable structure parts of the triangle block.

据此提出川南地区在直角三角形边界条件控制下，在三边同时受力的联合应力场中，当时已呈液、气态的油气物质在高压驱动下随岩层褶皱变形大体同步自三角形边缘向中心推进扩展运移，在三角形中部适当的构造部位聚集，形成工业油气田的新观点。

As Yukio Hatoyama wants Japan to interact more with China, the right triangle in which China is at the vertex of a small acute angle and Japan and the US at the other two vertices may become one that is more like an equilateral triangle. Clearly, Yukio Hatoyama sets greater store by China than Taro Aso.

鸠山由纪夫的外交理念是增加与中国的互动，人们也许会看到东北亚中、美、日三角，会由往昔的直角三角形的美日在一边而中国在另一边，调整到类似等边三角形。

The selection of form is nonaccidental because of the fact that the adjacent joints are located the right angle to each other, the commutation of cables and devices simplifies.

作为是明显的照片，第一选矿厂和对形式类似于字母T ，和另外两个类似的信十，选择的形式是nonaccidental ，因为这一事实，即毗邻的关节，位于该直角向对方，整流电缆及设备简化。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。