| 单词 | parallel motion |
| 释义 | > as lemmasparallel motion parallel motion n. (a) the 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; (b) a mechanical device which converts alternating rectilinear motion into circular motion, and vice versa; (c) Music a movement of two parts or voices in the same direction, maintaining the same interval between them. ΘΚΠ society > occupation and work > equipment > machine > parts of machines > other parts > [noun] > converters pallet1676 rack1717 parallel motion1728 rack and pinion?c1780 rack bara1824 radius rod1834 rack rod1839 society > leisure > the arts > music > musical sound > harmony or sounds in combination > [noun] > movement of parts > specific report1502 augmentationc1570 diminution1597 consecution1655 inversion1664 imitation1728 sequence1737 oblique motion1786 Rosalia1786 triple progression1786 parallel motion1864 1728 E. Chambers Cycl. at Centre The Centre of Percussion is the same with the Centre of Gravity, if all the Parts of the percutient Body be carry'd with a parallel Motion. c1784 M. Boulton & J. Watt in E. Robinson & A. E. Musson James Watt & Steam Revol. (1969) 154 The brasses of the parallel motion should be frequently examined. 1829 Nat. Philos. (Libr. Useful Knowl.) I. Mechanics ii. xiii. 59 The most remarkable method of converting an alternate rectilinear motion into an alternate circular one, is that known by the name of the parallel motion, invented by Watt for his double-acting steam-engine. 1857 W. Whewell Hist. Inductive Sci. (ed. 3) I. v. 381 The parallel motion of the Earth's axis. 1864 Webster's Amer. Dict. Eng. Lang. Parallel motion,..the ascending or descending of two or more parts in such a manner as to have constantly the same interval between the corresponding notes in the several parts. 1946 L. Toft & T. J. Kersey Theory of Machines (ed. 5) vi. 167 One form of this mechanism is known as Robert's parallel motion. 1987 B. Leatham-Jones Elements Industr. Robotics v. 122 In this design, usually two jaws accomplish gripping via a linear or parallel motion relative to each other. 2003 Santa Fe New Mexican (Nexis) 18 Apr. 28 The first track..sets the tone for the whole piece: lots of laconic, parallel-motion major and minor string chords with added seconds. < as lemmas |
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