A new method so called reflecting projection method is used to observe and measure the tangential focal line, sagittal focal line and astigmatism aberration of lens.
介绍一种观察和测量透镜子午焦线和弧矢焦线以及像散差的新方法 ,这种方法可以将透镜的子午焦线和弧矢焦线放大并直接投射到几米到十几米外的演示屏幕上 ,易于观察 ,而且可以准确测量出透镜的像散差 ,同时还可以演示像散光束的传播规律 ,生动直观 ,效果很
Finally it gives the method to solve the equation of orbital curve intersecting meridian at fixed angle.
最后给出了与子午线交定角的轨线方程的解法。
By introduction to large contrast test and applicated research of meridian tyre,the paper proved the value of application and implementation.
介绍了子午线轮胎通过大量的对比试验和应用研究后 ,证明比普通斜交胎节油率达1 0 。
The operation principle of meridian unfolding mechanism of Aviko K type bearing ball out surface inspection machine is introduced in this paper.
对ＡｖｉｋｏＫ型钢球外观检验机中独特的钢球子午线展开机构进行理论分析，将单驱动轮展开机构与双驱动轮展开机构进行了比较。
Analyses of loci in the π plane and meridian lines show that the parabolic and hyperbolic type failure envelopes have no influences on the shape of the.
对改进式所作的π平面极限线和子午线分析表明,采用抛物线和双曲线形强度包络线基本上不会改变原准则在π平面上的极限线形状,但子午线由直线改为曲线,极限面在主应力空间内分别为抛物面和双曲面,其锥顶距坐标原点也比采用线性强度包络线的要小。
On the base of analyzing and mathematical derivation of self focusing in graded index fiber, this paper deduce the loca equation and transition time of meridional rays.
对渐变光纤的自聚焦性进行了详细的分析和数学推导,尤其针对抛物线型折射率分布和双曲正割型折射率分布的渐变光纤从子午射线的轨迹方程,以及子午射线的渡越时间两个方面进行了全面论证,从而证实了双曲正割型折射率分布对子午光线而言是一种最佳的折射率分布,避免了模色散。
geodetic meridian
大地子午线地理子午线
Of or relating to meridians or a meridian.
子午线的子午线的或与子午线有关的
Of or relating to a meridian;meridional.
经线的，子午线的子午线的或与子午线有关的；经线的
observer's meridian
测者子午圈观测者子午线
radial tyre of truck
载货汽车子午线轮胎
principal meridian of gnomonic chart
心射投影基准子午线
Gauss grid convergence
高斯平面子午线收敛角
central meridian of gnomonic chart
心射海图中央子午线
all-steel radial truck tyre
全钢子午线载重车轮胎
Steel cord for radial tyre
GB/T11181-1989子午线轮胎用钢丝帘线
Either half of such a great circle from pole to pole.
子午线从极点到极点的大线圈的一半
Study on the Preferred Formula of Bead Rim Cushion in Radial Tires
子午线轮胎子口护胶配方的优化研究
the angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body.
从观测者所在的子午线到给定天体的子午线沿着天赤道的角距离。
a meridian that passes through the observer's zenith.
穿过观测者顶点的子午线。
The time or point in the sun's path at which the sun is on the local meridian.
太阳在子午线上方之时或之点
Retreading and repair of tyres(radial tyres)
GB14646-1993翻新和修补轮胎(子午线轮胎)
daylight saving meridian
计算夏令时间的标准子午线
A meridian is an imaginary circle.
子午线是假想出来的一个圆圈。