opaquing
美
英 
例句
Blocking-out The operation of eliminating undesirable backgrounds and portions of negatives by opaquing or masking the image. See Dropout.
把底片上不需要的地方或背景用遮光液或用遮片掩蓋的操作。參閱光部退地。
Study on relationship of different thickness and opaquing capacity of various opaques
不同品牌不透明瓷層厚度與遮色能力的研究