英 [ˈmeɪnsprɪŋ] 美 [ˈmeɪnsprɪŋ]
n. 主要动力；（钟表）主发条；主要原因；主要动机
复数mainsprings
mainspring /ˈmeɪnˌsprɪŋ/ TEM8
可数名词 If you say that an idea, emotion, or other factor is the mainspring of something, you mean that it is the most important reason or motive for that thing. 主要部分
My life has been music, and a constant search for it has been the mainspring of my life.
我为音乐而生，对音乐的不懈探索已经成为我生活的动力。
You begin to understand what actions were the mainspring of the story.
你开始明白什么是这个故事的主要情节了。
the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism
发条
...轮袋表，令我想起许多往事，吾非五六十岁老人家，但据个人经验，工字轮袋表问题十居奇九系断车芯，小部份问题断发条(Mainspring)，记得九十年代初期广州仲有师父代客人种车芯，国内帅父会用纸筒钢线做物料。
... mainspring n. 主发条；主要原因；主要推动力 morale n. 士气；斗志 monopoly n. 垄断；独占 ...
... metropolis 大都市 mainspring 主要原因 主要推动力 sheer adj. 陡峭的，全然的，绝对的； ...
主要动力；（钟表）[仪]主发条；主要原因；主要动机
My life has been music, and a constant search for it has been the mainspring of my life.
我为音乐而生，对音乐的不懈探索已经成为我生活的动力。
You begin to understand what actions were the mainspring of the story.
你开始明白什么是这个故事的主要情节了。
In the early 1400s came the invention of the coiled spring or fusee which maintained constant force to the gear wheels of the timekeeper despite the changing tension of its mainspring.
在15世纪早期，人们发明了螺旋弹簧或均力圆锥轮，尽管它的主弹簧的张力不断变化，但仍能对计时装置的齿轮保持恒定的力。
But power politics, rather than idealism, was the mainspring of the allies' response in 1948.
Ponders the way that study, the mainspring of universities, burdens looking, the playground of art.
It is, of course, influenced by politics, but its mainspring is market forces.