挂钩 1.[交通运输] couple (two railway coaches); articulate;2.(联系) link up with; establish contact with; get in touch with 高等院校应与科研单位挂钩。 universities and colleges should establish close contact with institutes of scientific research.3.(用来吊起重物或把车厢连接起来的钩) tieback; pullback; shackle; hitch; hitching; drawbar; coupling; [电工] dropper; hook hitch; latch hook; towing eye
Tail end head with two catch fingers for pull broaching . dimensions and characteristics of heads for broaching tools of diameters 4 to 50 拉削用的带两个卡销的尾挂钩头.直径到拉刀的主轴头的尺寸和特性