Updated O3N2 and N2 abundance indicators

The use of integral field spectroscopy is since recently allowing to measure the emission line fluxes of an increasingly large number of star-forming galaxies both locally and...近年来，积分场光谱学（Integral Field Spectroscopy）的应用已可用于测量越来越多近邻及[原文省略内容]中恒星形成星系的发射线流量。