目的建立以焦点胶片距离的改变,取得X线阶段曝光的屏片体系感光测定方法。
Purpose To establish a screen film system sensitometric method of X ray scale exposure by changing the distance between focus and film.
目的进一步探讨增感屏胶片系统特性曲线距离测定法。
Objective: to inquire into distance method of the characteristic curve for screen-film system.
目的进一步探讨增感屏胶片系统特性曲线距离测定法。
Objective: to inquire into distance method of the characteristic curve for screen-film system.
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