1、The process is very simple. First, a photographic plate is coated with a light sensitive material.
這個過程非常簡單，首先，把照相底片用感光材料包裹起來。

2、Line film: High contrast blue light sensitive film.
線條菲林(硬性菲林)：高反差的藍光敏感(色盲)菲林。

3、The method involves a piece of copper covered with light sensitive bitumen.
該方法用到一片銅片，上面用光敏感的瀝青覆蓋。

light sensitive翻譯