fish-joint夹板接合
grass fish hopper joint滑动接头
fish plate joint鱼尾板接合
fish-mouth joint[机] 鱼口接合
fish plate rail joint鱼尾板钢轨接头
N（名词） a connection formed by fishplates at the meeting point of two rails, beams, etc, as on a railway 夹板接合