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单词 cycloidal engine
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cycloidal engine
cycloidal engine: an instrument used in engraving an ‘engine-turned design’ upon the plates for bank-notes, etc., as a precaution against counterfeiting; the graver-point having a motion compounded of translation and rotation. cycloidal paddle: a name given to a paddle-wheel in which each float is divided longitudinally into several strips in a slightly retreating order, en echelon, so as to lessen the concussion and make the resistance more uniform (Knight). cycloidal pendulum: a pendulum constructed to swing in a cycloid, so as to be perfectly isochronous.extracted from cycloidaladj.
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更新时间:2024/12/24 3:39:10