draft key

铁路词汇3 - drj08的日志 - 网易博客 ... 钩舌销 knuckle pivot pin 钩尾销 draft key 尾框 coupler yoke ...

deik-的意思 中文翻译 ... draft regulator 拉力调节器 draft key 车钩尾销(扁销) draft loss [机]通风损失 ...

http://www.ptsgi.com/chine... ... "牵引箱"," Drawgear housing" "牵引键"," Draft key" "牵引变压器"," Traction transformer" ...