底片

I have three exposures left on this film.

这卷胶卷我还有三张底片未拍。

Block out this unimportant detail at the top of your picture.

在底片像部的这个不重要的细节涂抹掉。

Through controlling the each step in process of darkroom disposal,improve the quality of the sciagram efficently.

通过对暗室理过程中各个环节的控制,有提高射线底片的质量。

How many exposures have you made?

你拍过几张底片了?

For areas where the film density through the weld varies by more than from the density through the penetrameter, an additional penetrameter shall be used for those areas.

当焊缝区域底片变化超过透计时，应在该另加透计。