直角

The adjacent side is the side that is in contact with the angle we are interested in and the right angle, hence its name.

股就是人的大腿，长长的，古人称直角三角型中长的那个直角边为"股"。

A novel V-shaped slot antenna with a small right-angle triangle of supplementary slot is presented. The slot clement is fed by an arrow-shaped terminal of a microstrip line printed on the other side of substrate, and its good impedance matching is achieved by adjusting the area of this triangular supplementary slot.

提出了一种新颖的V形微带缝隙天线，地板上开一个直角V形缝隙，在V形缝隙的顶角处附加一个小直角三角形补偿隙，通过改变三角形补偿隙面积的大小可以对天线阻抗匹配进行优化，由基片另一侧的箭形微带线终端对缝隙单元馈电。

In fact, a triangle formed for example, by the northern halves of two meridians and the section of the equator between them, will have two right angles at its base and an arbitrary angle at the top-a sum clearly greater than two right angles.

实际上，比如说，一个由北半球的两条子午线和它们之间的部分赤道组合成的三角形，将有两个直角作为底角，还有一个为任意角度的顶角-很显然它的内角之和比两个直角和要大。

This paper investigates the converse theorem of rectangular projection theorem in descriptive geometry,and furthermore supplements and confirms another converse theorem,If the projection of two lines intersecting vertically fo rms a rectangle on a certain projecting plane,at least one line of the two lines is parallel to the projecting plane.

通过对《画法几何学》中直角投影定理的逆定理的研究，得出："若垂直相交的两直线在某一投影面上投影成直角，则该两直线至少有一条直线平行于该投影面"的推论。

Mathematics: Understands and applies basic and advanced properties of the concepts of geometry; Use the Pythagorean theorem and its converse and properties of special right triangles to solve mathematical and real-world problems; Understands the basic concepts of right triangle trigonometry (e.g., basic trigonometric ratios such as sine, cosine, and tangent); Uses trigonometric ratio methods to solve mathematical and real-world problems (e.g., determination of the angle of depression between two markers on a contour map with different elevations); Uses properties of and relationships among figures to solve mathematical and real-world problems e.g., uses the property that the sum of the angles in a quadrilateral is equal to 360 degrees to square up the frame for a building; uses understanding of arc, chord, tangents, and properties of circles to determine the radius given a circular edge of a circle without the center

数学：理解和应用几何概念的初级和高级特性；用毕德哥拉斯定理、逆定理以及特殊直角三角形性质解决数学的和现实世界的问题；理解基本的直角三角形三角比；运用三角比方法解决数学的或现实的问题。（等高线图上的两个标记之间的俯角确定）运用形体之间的关系及其属性解决数学的或现实的问题（利用四边形内角和等于360度来为建筑物框架取正，运用弧，弦，切线和圆的性质确定缺少中心的一段圆弧的圆心

This code is not casually arranged, it actually represents the Frog Kok of Cotangent value, which is part of Frog heart right triangle and two right-angle-FE AE ratio, that is, N = ctg α= FE / AE , N, is turnout.

这个代号可不是随便排列的，它实际上代表了辙叉角的余切值，也就是辙叉心部分直角三角形两条直角边FE和AE的比值，即N=ctgα=FE/AE，N就是道岔号。

It is found that energy density of static sphere symmetry of gravitational field is negative in the sphere coordinates and their energy density is positive definite in the Cartesian coordinates. This result shows that Einstien-Tolman expression of the energy-momentum pseudo tensor in the Cartesian coordinates have reasonable property.

在球坐标系和直角坐标系下我们用Einstien-Tolman表述计算球对称静态引力场的能量密度，发现在球坐标系下能量密度为负，而在直角坐标系下能量密度为正；这样的结果显示了Einstien-Tolman表述在直角坐标系下有其合理性。

Men Tao - line packages Mentao Combo semicircle line of stalls line Cartesian plane semicircle line Windows Presentation line side wood doors of the Cartesian plane Edge line Windows Presentation D-Line Soft envelope louvres of the rectangular double-concave lines A seal of the B-type Mentao Mentao combination of pressure Mentao Schematic diagram shade guide Mentao Toxic suite doors are installed Note : A carefully checked by Kai substandard door suite provided by the components to be installed to determine the specifications of size, the formulation of a sound installation scheme.

光门套线组合门套线二合一档条半圆线平面线直角半圆线门窗套线方木线门封边条直角平面线门窗套线D型软包线百叶条直角双凹线密封条 A型门套 B型门套组合门套压条门套示意图色板示意图免漆套装门的安装注意事项： 1仔细检查核对金凯免漆套装门提供的各项部件，确定待安装的规格尺寸，制定完善的安装计划。

In this paper,the flexural capacity and complex bearing capacity of T shape square steel tubular joint were study with finite element.

运用有限元对非直角T型方钢管节点的受弯及复合承载力进行了研究，对比分析了直角T型节点与非直角T型节点破坏形式，总结出了非直角T型方钢管节点的破坏规律，对工程实践有一定的指导意义。

It summarized the worn-out law of the non-right angle T shape square steel tubular joint on the base of comparing and analyzing the worn-out way of right angle joint and nonright angle joint,which has a certain guiding significance to project practice.

运用有限元对非直角T型方钢管节点的受弯及复合承载力进行了研究，对比分析了直角T型节点与非直角T型节点破坏形式，总结出了非直角T型方钢管节点的破坏规律，对工程实践有一定的指导意义。

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。