A sample of each coating is expozed on an Eastman 1B sensitometer and to a wedge spectrograph.
各涂层样品用1B感对着楔摄谱。
A sample of each coating is expozed on an Eastman 1B sensitometer and to a wedge spectrograph.
各涂层样品用1B感对着楔摄谱。
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