| 单词 | arc |
| 释义 | arc n. & v. --n 1. part of the circumference of a circle or any other curve. 2. Electr. a luminous discharge between two electrodes. --vintr. (arced; arcing) form an arc. Phrases and idioms arc lamp (or light) a light source using an electric arc. arc welding a method of using an electric arc to melt metals to be welded. Etymology: ME f. OF f. L arcus bow, curve |
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