Methods: to employ an electrothermal drier as a heat source and measure density of grey scale in film with a densitometer.

方法：使用电热干燥箱作热源，用密度计测量胶片上各级灰阶的密度。

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Compared with the bridge type drier, the drying system makes the glued film work steady without deviation.

干燥系统相比桥式烘道设计，胶膜更加稳定运行，不会左右偏移。

youdao

Compared with the bridge type drier, the drying system makes the glued film work steady without deviation.

干燥系统相比桥式烘道设计，胶膜更加稳定运行，不会左右偏移。

youdao