1、The result of the study demanstrated that the spectrographic analysis was a valuable method which…
作者認(rèn)為，頻譜分析是一種很有實(shí)用價值的客觀定量分析手段。

2、Most AGE's are yellowish brown and fluorescent and have specific spectrographic properties.
大多數(shù)AGE是黃褐色和熒光的，并有特殊的光譜性質(zhì)。

3、Spectrographic oil analysis technology has been used in the condition monitoring of diesel engines.
機(jī)油光譜分析技術(shù)已廣泛用于內(nèi)燃機(jī)車柴油機(jī)的磨損狀態(tài)監(jiān)測。

4、SPECTROGRAPHIC OBSERVATIONS OF NOVA CYGNI 1975
天鵝座1975年新星的光譜觀測