1) Ruled Paraboloid Surface
直纹抛物面
2) parabolic crack
抛物线裂纹
1.
By introducing the appropriate conformal transformation and using the complex variable function method,the anti-plane problems with an arc or parabolic crack in one-dimensional hexagonal quasicrystals are solved and the SIFs at the crack tip are obtained.
利用复变方法,通过引入适当的保角变换,研究了一维六方准晶中的圆弧裂纹以及抛物线裂纹的反平面剪切问题,得到裂尖处的应力强度因子。
3) paraboloid
[英][pə'ræbəlɔid] [美][pə'ræbə,lɔɪd]
抛物面
1.
The Method of Lapping the Paraboloid with the Bending Shaped Disk;
用弯曲成形磨具研磨抛物面的方法
2.
Research on high speed lapping paraboloid workpiece based on bending and forming method;
基于弯曲成形法抛物面高速研磨的研究
3.
The force analysis for air inflated paraboloid membrane structure;
抛物面气囊膜结构受力分析
5) parabolic mirror
抛物面镜
1.
The off-axis parabolic mirror is developed for the Singaporean synchrotron radiation light source development in this paper,in cluding Parabolic mirror fabrication and testing.
大离轴抛物面镜的加工与检测是当今光学加工的热门课题。
2.
The parabolic mirror is very .
从几何光学和物理光学出发 ,对抛物面镜以离轴 90°的方式应用于激光束的聚焦光路时 ,光轴的角度失准和入射光发散角对聚焦光斑造成的影响进行了分析 。
6) parabolic cylinder
抛物柱面
1.
This paper makes research on parabolic cylindrical antenna with feed for linear arrays,generates aperture-field analysis methods and simulation results of parabolic cylinder and feed .
本文对一种直线阵馈电抛物柱面天线进行了研究,并给出了抛物柱面和馈源的口径场分析方法以及仿真结果。
补充资料：直纹稻弄蝶
昆虫种名：直纹稻弄蝶(稻弄蝶,單帶弄蝶)Pararaguttata(Bremer&Grey,[1852])
4简要介绍：翅面黑色，前翅一般有7--8半透明斑排列成半圆形；后翅中域有4个白斑连成斜列。
晴天时在花丛中易采到，数量较多。
4虫体大小：翅展40mm
4分布区域：包括台湾在内的我国广大地区
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条