直角的

The problems of point - line - plane - volume; the facts of square - circle - triangle; the mysteries of central - peripheral - frontal - oblique - concave - convex; the right angle and perpendicular; of scale and position; the interest in post- lintel, wall-slab, vertical-horizontal; the arguments of two-dimensional and three-dimensional space; the extent of a limited field; the meaning of implied extension; the meaning of plan, of section, of spatial expansion - spatial contraction - spatial compression - spatial tension; the direction of regulating lines, of grids; the relationships of figure to ground, or number to proportion, of measurement to scale, of symmetry to asymmetry, of diamond to diagonal; the hidden forces, the ideas of configuration; the static, the dynamic: all these begin to take on the form of a vocabulary.

点-线-面-体的课题；正方形-圆形-三角形的事实；中央-边缘-正对-倾斜-凹入-凸出的奥秘；直角与垂直；尺度与位置；柱-梁、墙-板、竖直-水平的旨趣；两维与三维空间的思辩；局促场所的极限；暗示延伸的含意；平面、剖面、空间扩充-空间收缩-空间挤压-空间张拉的意义；控制线与网格的方向；图与底、数字与比例、尺寸与尺度、对称与非对称、菱形与对角线的关系；暗藏的力量、构型的想法；静态、动态━这一切都将发展成为语汇的形式。

In this paper, the current states of research about the basic theory of harmonic oscillator and hydrogen atom in quantum mechanics are firstly reviewed. On base of it, and the relationships between harmonic oscillator and hydrogen atom in quantum mechanics are studied. By use of the relationships between the hermite polynomial and the laguerre polynomial, the eigenequations of one-dimensional harmonic oscillator and hydrogen atom are conversed into the same equations in form. Therefore the relationships between energy levels and wave functions of one-dimensional harmonic oscillator and hydrogen atom are found. Through the coordinates transform, the relationships between energy levels and wave functions of two-dimensional harmonic oscillator and hydrogen atom are found.

首先综述了谐振子与氢原子的基本理论的研究现状，并在此基础上对谐振子与氢原子的关系展开了研究，通过厄密特方程与拉盖尔方程的相互转化，将一维谐振子与一维氢原子的本征值方程转化为相同形式的方程，从而比较得出它们能量及波函数间的关系，并通过坐标变换将直角坐标系下二维氢原子的本征值方程转化成与曲线坐标系下二维谐振子的本征值方程相同的形式，从而得出二维氢原子与二维谐振子的能量及波函数的关系。

In view of the general relationship between corporate income tax burden and scale of enterprises, in a rectangular coordinate system, suppose that ordinate axis stands for tax burden and abscissa axis stands for scale of enterprises, then the curve of tax burden of three cities' enterprises is like a flat S. that's to say, tax burden of the smallest enterprises is relatively high, that of enterprises scaled from 5 million to 10 million yuan is the lowest, and then tax burden increases with the scale going up. The trend continues until the scale of enterprises is beyond 100 million yuan and the top point appears. When the scale of enterprises expands to 800 million yuan, the tax burden starts to turn down and is lower than that when the scale of enterprises is beyond 100 million yuan.

就企业所得税负担与企业规模的一般关系看，如果以直角坐标系的纵轴表示税负，横轴表示企业规模，那么随着企业规模的变大，三城市企业的税负曲线呈一个平躺着的S形状，即规模最小的企业税负较高，500到1，000万元企业的税负率最低，然后企业的税负率开始随规模的增加而提高，这种趋势一直延续到企业规模超过1亿元时达到最高点，待企业规模继续扩张到8亿元左右时，税负开始回落，并将低于原先超过1亿元时的水平。

We calculate the energy-momentum pseudo-tensor of relic gravitational wave of both the polarized states by Riazuelo-Uzan expression of the energy-momentum pseudo tensor in the Cartesian coordinates, we can see that energy density and momentum densities of relic GWs are dependent on cosmic scale factor and square of the amplitudes,. At the same time, the energy density of relic GWs is positive definite, the momentum densities components have reasonable physical behavior,and their values are independent on the directions.

我们还用Riazuelo-Uzan表述在直角坐标系下对双极化态的遗迹引力波的能量动量赝张量进行计算，发现双极化态的遗迹引力波的能量张量密度与他们的振幅的平方和宇宙学尺度因子有关，他们的能量密度是正定的，大小跟传播方向无关，即遗迹引力波在宇宙学尺度上是各项均匀同性的。

In addition, a printing plate edge marked slopes or plate is too thin, or short-run printing of excessive wear lighter, so that the short-run suites and whitespace differences of high and low is too low and too soft pads, resulting in suites blank areaand, electro-chemical layer of aluminum foil, etc, should be made at the edge version slope near 90-degree right-angle (such as seihan with carving techniques that help you make little gradient edge version), according to the characteristics of the short-run suites, with thickness larger plate seihan, and a blank site, using a corrosion deeper stereoplasm lining for short-run; in addition, you should choose thin aluminized layer of anodized, adjust the appropriate business card printing and membership card making and adjusted pressure volume drum uponsize pressuer letoff drum.

此外，印版边沿存在明显的斜坡度或版材太薄，或印版过量烫印磨损变浅，使烫印版面与空白的高低差异太小，衬垫材料过软，造成版面空白部位与电化铝箔层接触等，应将版边沿坡度制成近90 度的直角(如采用雕刻工艺进行制版，可使版边沿几乎没有坡度)，根据烫印版面的特点，采用厚度大一些的版材制版，并将空白部位腐蚀深一点，采用硬质包衬进行烫印；此外，应选择镀铝层较薄的电化铝，调整合适的制卡和会员卡制作压力，并适当调整压卷滚筒压力和收卷滚筒拉力。

The supposed advantage was that any observer with a decimal chronometer and a view of the sun's height above the horizon would then know instantly where on the planet he was. With 100 decimal degrees (or "gons" as they became known) to a right-angle, and the distance from the pole to the equator being almost exactly 10,000 kilometres, 1 km along the surface subtends an angle of one centigon (a hundredth of a decimal degree) at the centre of the Earth.

人们认为这种表的优势在于：任何人只要有这样一块十进制表，再能看到地平线以上太阳的高度，就会立刻知道他在地球上的位置。100个十进制度（更为流行的称法叫作&百分度&）就是一个直角，从极点到赤道的距离几乎就是10000公里；这两点就使得地球表面的一公里的地心夹角恰巧是1centigon （即1百分度的百分之一）。

Adjustment of the countertop with the seams of the wall: when the benchmark side of the countertop joints with the jointing side, in case the clearance between splash back of the countertop and the wall is larger than 5MM, use the following method to adjust.

台面与墙面缝隙的调整：接驳台面基准边与对接边合拢后，对于非直角墙体，如台面挡水与墙体面缝隙超过5MM，我们可以通过下面的方法调整，将两块台面紧靠墙，将两块台面的后挡水边靠拢在一起，这时两块台面的前端有间隙，就用卷尺测量前端间隙的尺寸，在后挡水处按间隙尺寸做标记，连接前端点和后面的标记划线。

Adjustment of the countertop with the seams of the wall: when the benchmark side of the countertop joints with the jointing side, in case the clearance between splash back of the countertop and the wall is larger than 5MM, use the following method to adjust. Place the two countertops tightly against thewall and put the two splashes back together. In this way, the two countertops will have clearance at the front side. Measure the clearance of the front and mark the clearance dimensions at the splash back. Mark along the front end and marks at splash back. Cut along the line.

台面与墙面缝隙的调整：接驳台面基准边与对接边合拢后，对于非直角墙体，如台面挡水与墙体面缝隙超过5MM，我们可以通过下面的方法调整，将两块台面紧靠墙，将两块台面的后挡水边靠拢在一起，这时两块台面的前端有间隙，就用卷尺测量前端间隙的尺寸，在后挡水处按间隙尺寸做标记，连接前端点和后面的标记划线。

The three antennas which receive VHF impulses emitted by a lightning discharge are placed on the vertices of a right-angled isosceles triangle with perpendicular sides 120 meters in length.

三个接收天线(接收闪电放电辐射的超高频脉冲)分别放在一个垂直边长为120米的直角等腰三角形的顶点，由到达天线的时间差来计算接收到的闪电脉冲的方向。

Forequarters nThe shoulders are well laid back at an angle of approximately 45; a line drawn from the highest point of the shoulder blade to the forward point of articulation approximates a right angle with a line from the forward point of articulation to the point of the elbow.

完整的齿系最为理想。nn 颈部 n 颈部的长度与身躯比例恰当，结实而略拱，平顺地与肩部结合。nn 前躯 n 肩部向后倾斜，角度约45度；从肩胛最高点向前，到肩胛与前臂的结合点所形成的直线，与前臂从与肩胛结合点向下，延伸到肘部的直线，正好呈清晰的直角。

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。