hinge

合页，折叶，铰链英释nna piece of metal fastened to a door, lid etc that allows it to swing open and shut

1 plastic hinge,塑性铰

2 hinge on,以…为转移，靠…转动

3 door hinge,门铰链

4 hinge joint,铰链接合

5 concealed hinge,暗式链条

6 spring hinge,弹簧铰链

7 hinge pin,铰链销；折页轴；销轴

8 hinge line,枢纽线，铰合线；蝶铰线

1 The top swung open on well-oiled hinges..盖子在上好油的折叶上一下子弹开了。