Antonym: billow. Similar words: ripping, apple, supple, topple, grapple, triplex, zipper, whipped. Meaning: ['rɪpl] 
n. 1. a small wave on the surface of a liquid 2. (electronics) an oscillation of small amplitude imposed on top of a steady value. v. 1. stir up (water) so as to form ripples 2. flow in an irregular current with a bubbling noise.
n. 1. a small wave on the surface of a liquid 2. (electronics) an oscillation of small amplitude imposed on top of a steady value. v. 1. stir up (water) so as to form ripples 2. flow in an irregular current with a bubbling noise. 
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181, How to increase the overload capacity, reduce the ripple of the torque, achieve high efficiency and high power density, enlarge the speed range is discussed and reviewed in this article.
182, If you do, your hem will around the bias and ripple.