centre angle的例句大全

The problem is studied firstly that the performance characteristics of pump be affected specifically by the four kinds of geometrical parameters of impeller, i. e. number of blade, outlet blade angle, tangential blade thickness and centre angle in this article using the orthogonal experimental method.

作者运用正交试验法，进行了叶片数，叶片出口安放角、圆周厚度和包角等四种叶轮几何参数对离心泵能量性能影响的试验研究。

By the sphere centre, elevation angle and azimuth angle of the gun barrel are obtained.

通过确定球心位置，对炮身管的高低角、方位角进行计算，从而检测火炮调炮的性能。

Position the nail file at a 45-degree angle under the nail, and file the nails from the left hand corner to the centre of the nail for a few long gentle strokes. If necessary, use nail clippers to shorten the nails first.

将锉刀以45度角放置于指甲下方，从指甲的左边慢慢磨到中间，如有必要，先把指甲剪断一点再磨。

A series of factor such as the difference about the centre of figure and the shear centre, curvature radius, central angle is discussed. Sometimes it is better to locate the force half-way between the centroid and the shear centre.

对曲线梁中的剪、形心位置的差异以及曲率半径、圆心角、预应力大小、摩阻损失等内力影响因素进行了分析。有时，荷载作用在形心与剪心距离的一半处较为有利。

Spherical metal tank is measured by light tangent method, and the uncertainty of measurement results is calculated by analysing the centre distance, horizontal angle and left and right tangent distance to the top etc.

环形金属罐的测量采用光切法，通过分析中心距、水平夹角、左右切点天顶距等参数，计算球形金属罐容量测量结果的不确定度。

an arc a spheroid a rigt angle an obtuse angle a square the centre of a circle the radius of a circle

直角钝角正方形圆心弧球体圆的半径

using cad method for diagram display, the paper studies the determination of the border lines for the shaft centre of the cam according to the permissible pressure angle, while the cam and the oscillating rod are in the different relative positions and subjected to variable forces.

本文应用计算机图形显示CAD技术，深入探讨了凸轮与摆杆在不同相对位置及不同受力情况下，按许用压力角确定凸轮轴心位置的限制线问题；