| 单词 | halo of 46° |
| 释义 | halo of 46° [`hā·lō ǝv ¦fȯrd·ē`siks di`grēz] OPTICS A halo phenomenon in the form of a prismatically colored circle or incomplete arc thereof, centered on the sun or moon and having an angular radius of about 46°; the coloration is red on the inner edge to blue on the outer edge. |
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