projection lens meaning in English
聚光透镜
投影镜头，放映镜头
投影透镜
Examples
- Resolving power test charts for projection lens
放映镜头解像能力测试标板 - Method for determining various functions of projection lenses
放映镜头各种功能的测量方法 - Technical specification of 35mm motion picture projection lens
35mm电影放映物镜.技术条件 - Brilliancy test charts for projection lenses
放映镜头用耀度测试标板 - Ultraplane microscope projection lens
超平场显微镜投影镜头