The process technology of the colour spectro prisms is described with special emphasis on cementing methods of colour spectro prism series.
本文叙述了彩色分光棱镜的加工工艺，并着重介绍了彩色分光棱镜组的胶合方法。
This paper is the fourth in a series publishing the results of an objective prism survey for emission-line galaxies with the 60 cm Schmidt Telescope of the Beijing Astronomical Observatory.
本文发表的是用北京天文台60厘米施密特望远镜进行发射线星系物端棱镜巡天结果的第四篇文章。
Eight prism aluminum alloyed metal series exhibition equipment.
八棱柱铝合金系列展具。
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