aspherical surface中文什么意思

例句与用法

更多例句：  下一页
1. the relative aperture 1 : 2 is the limitation of the manufacturing and testing of aspherical surface by using traditional method
   相对孔径1：2已是传统非球面加工和检验的极限。
2. moreover, aspherical surface error in sagittal plane was found, and bended beam ’ s radius r, position s of concentrated load p and length l of arc which were suited for aspherical figure accuracy of both tangential plane and sagittal plane were given
   此外,本文对有限元法分析过程也进行了简要说明,并用有限元软件patran/nastran对上述曲梁的计算进行了复核。
3. the unfocused aspherical surface system is one of the main structure of large emiting system . in the system, the more large the relative aperture of primary mirror, the more small the focal length and the tube of system, and the more light the weigth
   这个系统中的主反射镜的相对孔径越大，其焦距就越短，相应地系统筒长就越短，重量就越轻，这样就越能满足车载或机载系统的实战要求。
4. besides, the test and test result of some key components, eg . pev and the infrared laser system, are introduced . finally described is the special measurement, with infrared phase-shifting twyman interferometer, of a rough reflective surface and an aspherical surface
   文中还介绍了对pev、红外激光系统等关键部件的测试与调试结果，介绍了利用红外干涉仪进行的特殊测试如抛光前的光学粗糙表面及某些非球面面形等。
5. the reasons to choose aspherical grads method as the principle were presented . the two spheres which were gotten from aspherical grads method and least square method were analyzed by fem software, and the deviation with the wanted aspherical surface and the maximum stress were compared under same confined condition, same loading position and loading points . also, we proved that the sphere gotten from aspherical grads method has less surface error and stress after deformation
   用有限元软件分别对非球面变化梯度法和最小二乘法所获球面进行了分析,比较两种球面在相同边界条件、相同加载位置和个数下,与所需非球面的面形误差和应力的大小,证明了用非球面变化梯度法所获得的球面在变形后,面形精度更高,应力更小。