n.光源；照明剂；施照体；发光物（体）
adj.照明的；发光的

The illuminant in the room was a single, dim light bulb.
房间里的照明工具是一只微弱的灯泡。
The sun serves as the primary illuminant for all life on Earth.
太阳是地球上所有生命的首要光源。
The artist carefully chose the illuminant to enhance the colors in her painting.
艺术家仔细选择了照明光线以增强画作中的色彩。
The use of LED as an illuminant has revolutionized energy-efficient lighting.
使用LED作为照明源彻底改变了能效照明领域。
In the study of ancient manuscripts, scholars depend on non-destructive illuminants to read faded text.
在研究古代手稿时，学者们依赖于无损的照明工具来阅读褪色的文字。
The nocturnal animals have adapted their vision to low-level illuminants.
夜行性动物已经适应了低光环境的视觉。
The illuminant from the streetlamp cast long shadows across the deserted alley.
街灯的光线在空旷的小巷里投下了长长的影子。
The choice of illuminant can significantly affect the mood and ambiance of a space.
照明的选择可以显著影响空间的氛围和情绪。
The underwater camera required specialized illuminants to capture clear images in the depths.
水下相机需要专门的照明设备才能在深海中捕捉到清晰的图像。
The illuminants used in photography must be considered for color accuracy.
在摄影中使用的照明光源必须考虑到色彩的准确性。