透视镜 meaning in English

perspective glass
photoscope

The former included perspective lens , diffuse machine , inspiration resources etc ; the later included the influence on education and harm to the development of education etc . the second part summarized the actualities of the educational criticism in the join of the 20th century and 21st century
教育批评具有“透视镜” 、 “传播机” 、 “灵感源”和“引玉砖”等正向功能，而不适当的教育批评会影响教育宏观决策、伤害人们对教育的信任，并导致错误的教育取向和选择。
When i get into astronomy building , the astronomy equipments of inside , make me dim in vision and confused , getting into the first floor is an exhibition hall , there is various brief introduction concerning astronomy , get into second floor to have various of telescope concerning astronomy , see through a mirror etc . equipments , and the introduction of various horoscope
11月10日10 : 57当我进入天文馆,里面的天文设备,让我眼花缭乱,进入到第一层是一个展厅,有各种关于天文的简介,进入到第二层有各种的关于天文的望远镜,透视镜等设备,以及各种星座的介绍