中文来自 ECDICT
- n.
- 弧，弧形，弓形，弧光
演变路径（由近及远）
词源说明
释义（英文）
名词 Noun
- (astronomy) That part of a circle which a heavenly body appears to pass through as it moves above and below the horizon. [from 14th c.]
- (geometry) A continuous part of the circumference of a circle (circular arc) or of another curve. [from 16th c.]
- A curve, in general. [from 17th c.]
- A band contained within parallel curves, or something of that shape. [from 17th c.]
- (electrics) A flow of current