胶片感光度 meaning in English

film eed
film sensitivity
sensitivity of fil

Method for determining the speed of colour reversal camera films
彩色反转照相胶片感光度测定方法
Film speed indicator
胶片感光度指示圈
Method for determining the speed and average gradient of black - and - white aerial camera films
黑白航空照相胶片感光度和平均斜率测定方法
Method for the sensitometry of industrial x - ray films for energies up to 3 million electron volts
能量达3百万电子伏工业用x射线胶片感光度的测定方法
Photographic sensitometry , determination of optical density ; geometric conditions for transmission density
照相胶片感光度测定.光密度测定.透射密度的几何条件