sundog是什么意思
2024-02-12 16:38:16
sundog
n. [气](=parhelion)假日；幻日
近义词：parhelion，mocksun，
英英释义
Noun
- a bright spot on the parhelic circle; caused by diffraction by ice crystals;
"two or more parhelia are usually seen at once"
例句
- A solar phenomenon known as a sundog arcs over the tundra in Churchill, Manitoba, Canada. 加拿大马尼托巴省丘吉尔冻原上出现了幻日光弧这种日光现象。
- Analogous to a sundog or parhelion, the paraselene is produced by moonlight shining through thin, hexagonal-shaped ice crystals in high cirrus clouds. 类似环日的形成一样，在高空卷云中，月光通过稀薄、具有六边形状的冰晶时产生了幻月。