射线光谱学 x ray spectroscopy ; xrayspectroscopyx ; X-rayspectrographyX
光线治疗学 [临床] phototherapeutics
光线光学 ray optics
非线性光学晶体 [晶体] nonlinear optical crystal ; nonlinear crystals ; lithium indium sulphide
射线光学 [光] ray optics ; rayopticsX
光学天线 [电讯] optical antenna
光学曲线磨床 optical contour grinder ; projection grinder ; optics curve grinding machine ; Optical projection profile grinding machines
光学曲线磨床技师 PG Machinist
非线性光谱学 [光] nonlinear spectroscopy
环境学：指空间的使用和感觉，如白天或夜晚、温度与湿度、家俱和装潢、光线与噪音等。
Surroundings: the usage of space and the perception, like day or night, temperature, and humidity, furniture and decor, light and noise etc.
因为星盘由光线格局组成，所以吠陀占星学也称为“周谛士”，即研究出生时刻天空中光线格局的艺术。
Because the chart is composed of patterns of light, the science of Vedic astrology is also called Jyotish, or the art of understanding the patterns of light in the sky at birth.
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