knee-girder是什么意思

网络释义

1)knee-girder,肘状梁2)knee-girder bascule,肘状梁式竖旋桥3)cantilever,肘梁4)Beam Bracket,梁肘5)elbow,肘;肘状物;肘管6)brakcetknee,(船)梁肘