单词	hairspring
释义	hairspring /ˈhɛːsprɪŋ / noun A slender flat coiled spring regulating the movement of the balance wheel in a watch.This oscillation is not exactly a parallel to the balance wheel and hairspring of a clockwork watch, but the fact is that both use oscillations to keep track of passing time.... The curb pins on the regulator must be adjusted so that the hairspring hits them when it is supposed to. In most cases they used a long extension of the hairspring and pinned it to the base of the balance cock.
随便看	decidual decidualisation decidualised decidualization decidualized Deciduata deciduate deciduity deciduoma deciduous deciduously deciduousness deciduous tooth decigram decigramme decile deciliter decilitre decillion decillionth decim decima decimal decimal arithmetic decimal classification

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