facula
n. 摆白斑；光斑
名词复数：faculae
英英释义
Noun
- a bright spot on a planet
- a large bright spot on the sun's photosphere occurring most frequently in the vicinity of sunspots
例句
用作名词(n.)
- So a new method to limit the facula was presented to improve illumination efficiency of light-pipe.据此，提出了限制光斑进入方棒以提高整体照明系统效率的方法。
- In order to calculate the radius of the facula captured by CCD, several algorithms are discussed.对光斑圆半径的提取设计了半径提取算法。