illuminant

基本解释

The pilot said the aircrew of more than ten other airliners flying above Shanghai also reported the illuminant object, one by one.
据悉，当驾驶航班CZ6554的飞行员于21时51分起飞后，发现的一个“不明发光体”占据了各大版面的头条。飞行员说：“晚21时左右，CZ6554航班，上海区域，高度一万零七百米发现巨大球状发光天体”。
Airline pilots and several witnesses reported seeing “a huge *spherical illuminant” in the sky above Beijing and Shanghai on August 20, reported China Daily.
《中国日报》报道称，在京沪两地，一些飞行员以及数位目击者都声称自己于8月20日这天在当地空中看到了一个“巨大球状发光体”。
In this paper, the illuminant principle and functional characters of rare earth noctilucent fibers were summarized, and then analyze its wearability and application area.
简述了稀土夜光纤维的发光原理及其功能特性，分析了该纤维的服用性能及应用领域。

This lovely illuminant contrivance is perhaps symbolic of that golden age.
FORBES: Designer Unveils Wooden Light Bulb

光源
The spectral line characteristic of each kind of typical illuminant is analyzed and compared in this paper.3.
2.通过对典型光源的谱线测量,分析比较了各种典型光源的谱线特征。
物理学
光源
发光体
发光的
施照器