facula

英 ['fækjʊlə] 美 ['fækjʊlə]

• n. 摆白斑；光斑

英英释义

Noun:

1. a bright spot on a planet

2. a large bright spot on the sun's photosphere occurring most frequently in the vicinity of sunspots

例句

用作名词 (n.)

1. 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。
2. 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。