擒纵机构

1.levermovement  2.detent  3.escapement  

纵的英语翻译：

endlong; even if; from north to south; indulge; jump up; release; vertical

机构的英语翻译：

institution; organization; framework; house; machine; mechanism; organ; outfit
setup; wheel
【化】 mechanism
【医】 institution; mechanism; organization