luminosities的读音 luminosities中文意思

读音 
n. 发光( luminosity的名词复数 );光明;光度;发光体
luminosities 用法和例句
Subsequently astronomers found more and more cepheids in different corners of the universe and discovered that there exists a simple relationship between their luminosities and light variation periods .
其后的天文学家在宇宙不同角落陆续找到其他造父变星,并发现了它们光度跟光变周期间的简单关系。