角形

Through the development of the secondary piercer unit with forward angle change type three roll structure, the role of "Rolling Effect" principle in three roll cross rolling is advanced, based on which the design principle of roll shape and pass is put out.

通过对变送进角型三辊铝管二次穿孔机组的研制，提出"辗轧效应"原理，在三辊斜轧中得到应用，并以此推出辊形与孔型设计原则。

A plane figure consisting of four points, no three of which are collinear, connected by straight lines.

四边形，四角形由四个角组成的平面图形，没有任何三个点共线，通过直线相连接

Mathematics A plane figure consisting of four points, no three of which are collinear, connected by straight lines.

四边形，四角形：由四个角组成的平面图形，没有任何三个点共线，通过直线相连接

Ears: The ears are erect, pointed, inverted V-shaped, set high and close together, but never touching.

耳朵：耳朵是直立的，尖角的，呈倒放的V形，位置高并且间距近，但是不能碰在一起。

The pancreas is a V-shaped gland found within the tissue located at the angle formed by the pylorus and the duodenum.

f 胰腺是个V形的腺体，位于胃的幽门部和十二指肠形成的弯角。

This paper presents a new method to determine the minimum basic circle radius of a plate cam with a roller follower by the allowable pressure angle, and gives the feasible region of geometrical parameters of the cam mechanism.

介绍按许用压力角确定滚子从动件盘形凸轮最小基圆半径的一种新的解析方法。同时给出凸轮机构几何参数的可行域

These cracks occurred at either the beam flange or in the column flange depending on the reentrant corner weld angle.

这些裂纹视凹形焊角的不同，或者出现在横梁翼缘上，或者出现在立柱翼缘上。

In this paper, assuming that pulsar magnetic field is rotating vacuum dipole, which is derived from retarded potential, the PA curve is reinvestigated.

文章采用从推迟势导出的旋转真空磁偶极场，研究了在脉冲星磁场为旋转磁偶极场位形下的线偏振位置角曲线。

The typing feature of colour spectrum extender has been surveyed by the method of X-ray small angle scattering .

用X－射线小角散射方法测得了色谱填料的分形特征。

The inclusions are changed from chain shape with acute angle to spherical shape. Those are complex inclusions with the Zr containing inclusions are the nuclei for the inclusions, Al2O3 and / or MnS are located in the surface layer of the inclusions whose size is in the range of 1.0 to 3.0μm.

经过锆处理后，粗晶热影响区中的夹杂物由长条的尖角状变为圆形或近圆形，且都是含锆的复合夹杂物，含锆夹杂物作为形核核心，在其表层沉淀析出Al2O3和／或MnS，其尺寸在1.0~3.0μm之间。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐