单词 | parallel motion |
释义 | parallel motionnoun 1The motion of bodies which are moving in parallel directions, of one body in a direction parallel to another, or of a body which points in the same direction at every point of the motion. 2A mechanical device which converts alternating rectilinear motion into circular motion, and vice versa. 3 Music a movement of two parts or voices in the same direction, maintaining the same interval between them. OriginEarly 18th century; earliest use found in Ephraim Chambers (?1680–1740), encyclopaedist. |
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