draft key

网络释义

1.	钩尾销铁路词汇3 - drj08的日志 - 网易博客 ... 钩舌销 knuckle pivot pin 钩尾销 draft key 尾框 coupler yoke ... blog.163.com
2.	车钩尾销 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 ... www.qiongdian.com
3.	牵引键 http://www.ptsgi.com/chine... ... "牵引箱"," Drawgear housing" "牵引键"," Draft key" "牵引变压器"," Traction transformer" ... www.guandang.com

释义:

钩尾销,车钩尾销,牵引键

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