ptincipal normal是什么意思

用法例句

Discusses algebraically and geometrically the properties of the ruled surfaces in the Euclidean three-space,especially,the principal normal surfaces on which there are some special curves,such as Mannheim curves,Bertrand curves and general helices.

讨论了三维欧氏空间中特殊曲线的主法线曲面。

Contact Stress Analysis for the Flanges of HTR-10 Pressure Vessel;

10MW高温气冷堆压力容器主法兰结构的有限元接触分析

This paper discusses the function of democracy and law in enhancing the construction of a harmonious rural area.

对民主法治推进和谐农村建设的作用进行了探讨。

The ground level of democracy and legislation in the countryside, one important part of socialist democracy and legislation and one important goal and task in building a harmonious society, will certainly gain people s increasing concern.

农村基层民主法制是社会主义民主法制的重要组成部分,随着我国构建社会主义和谐社会宏伟蓝图的绘就,作为构建和谐社会重要目标和任务之一的农村基层民主法制必将越来越受到人们的关注,为了更好推动新农村建设,推动和谐社会建设的进程,笔者拟从农村基层民主法制存在的问题和如何进一步加强两个方面进行探讨。

This paper deals with how Deng Xiaoping carried on and developed Mao Zedong s important thoughts of reinforcing socialist democracy and legislation construction,eradicating government by man and strengthening government by law.

本文主要论述了邓小平继承和发展毛泽东关于加强社会主义民主法制建设的重要思想。