透明物一个透明物体，尤指那种通过用光从后背照射或投影的方式来观看的幻灯照片 A transparent object, especially a photographic slide that is viewed by light shining through it from behind or by projection.
透反射两用幻灯机用于将不透明或透明物体的影象投影到屏幕上的机器 A machine for projecting the images of opaque objects or transparencies on a screen.
