采用光栅技术，用98J型精密测量投影仪对X光底片进行测量，用微机采集和处理数据。
The 98J mode precision measurement projector is used for measurement of X ray plate by grating technique and a personal computer is used to collect and to process the data.
一旦进去了，他们便会记录下随手触及的日常物品，比如全家福、X光底片、供奉祖先的神龛和破损的存钱罐。 这些东西可能永远都不会出现在历史书籍中。
Once inside, they document everyday items that they stumble upon — family portraits, X-rays, ancestral shrines, a broken piggy bank — and that will probably never be recorded in history books.
底片像：一种映像，在里面物体的有光的部分显示出暗色，而阴暗的部位显示出光亮。
An image in which the light areas of the object rendered appear dark and the dark areas appear light.
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