butt hinge

butt-hinge的词性：
n.（名词）

1. A hinge composed of two plates attached to abutting surfaces of a door and door jamb and joined by a pin.
门的铰链：连接门面和侧柱的由两个金属板组成的铰链，用一个栓子连在一起

butt-hinge的词源：

2. From butt ²
源自 butt²