DICT.TW Dictionary Taiwan

 Rock·ing, a. Having a swaying, rolling, or back-and-forth movement; used for rocking.
 Rocking shaft. Mach. See Rock shaft.
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 Rock shaft  Mach. A shaft that oscillates on its journals, instead of revolving, -- usually carrying levers by means of which it receives and communicates reciprocating motion, as in the valve gear of some steam engines; -- called also rocker, rocking shaft, and way shaft.
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