菜篮子兴趣思朗文词典

photographic density

P 开头单词

常见例句

  • For areas where the film density through the weld varies by more than from the density through the penetrameter, an additional penetrameter shall be used for those areas.
    当焊缝区域底片黑度变化超过透度计处黑度时，应在该处另加透度计。
    • 返回 photographic density