单词：mainsprings
(mainspring 的复数) n. 主发条, 主要动机, 主要原因, 主要动力
[法] 主要动机, 主要原因, 主要动力
[法] 主要动机, 主要原因, 主要动力
plural of mainspring
n. the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism
n. the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism