In this situation astronomers tacitly assume that stars of the same luminosity and color all have the same mass . 在目前的状况下，天文学家心照不宣地默认，光度和颜色都相同的恒星具有相同的质量。
The core is in a transient state which does not produce neutrinos while the surface reflects an earlier high-temperature, high-luminosity state . 太阳核心处于一种过渡状态，目前并不产生中微子，而太阳表面则反映出早期的高温和高光度状态。
The hot, massive, high-luminosity stars of spectral types o and b are not distributed uniformly over the galaxy but are grouped into extensive, separate aggregates that have come to be called associations . O型和B型的大质量高光度热星在银河系中分布并不均匀，而是聚集成为分开的大星群，即所谓星协。
The festoons of japanese lanterns in and aroud the barn were not yet lighted, but some halfdozen lamps, with great tin reflectors, that hung against the walls were burning low . 马房内外那一串串日本灯笼还没有点上，可是有五、六盏挂在墙上的灯，灯上装着巨大的白铁反光板，已经点亮了，光度很弱。
Determination of phosphorus in feed - spectphotometry 饲料中总磷的测定分光光度法
The determination of sulfate - photometric method as barium chromate 铬酸钡光度法
Dextrose , d - fructose . determination of optical rotation 葡萄糖.果糖.旋光度的测定
Determination of fe in fenh4 y by spectrophotometry 中铁交换度的分光光度法测定
Multiple lamps ; flash lamp arrays ; photometric data 多盏灯.闪光灯的配置.光度数据
Spectrophotometric determination of copper in ginseng 花旗参中铜含量的光度法测定
