universal joint

... universal joint yoke 万向节叉 universal joint 万能接头 universal joint 万向接头 ...

[机] universal contact

... Unit 零(部)件、组合件、单位 Universal contact 万能接头 Universal dividing head 万能分度头 ...

 UVC

... uvarovite钙铬榴石 UVC万能接头 UVF紫外荧光 ...