CGATS. 4 and CGATS.5 the important link between density measurements and measurement of spectrophtometry measurement conditions, is 0/45, the spectrophotomete or you can use a densitometer.是什么意思_CGATS. 4 and CGATS.5 the important link between density measurements and measurement of spectrophtometry measurement conditions, is 0/45, the spectrophotomete or you can use a densitometer.在线翻译_英语_读音_用法_例句