Butta布塔
buttn.烟蒂;屁股;枪托n.笑柄;靶垛n.大酒桶n.抵撞v.插嘴;顶撞
Buttner's crown
butts and bound地界,地端对接
butting machine切梗机
butt face dowel平接面定缝销钉
butt welded tap对焊丝锥
butt weld joint对焊接头
buttless thread锯齿螺纹
butting portion对接
buttcover plate拼接板,对接板
buttstrap joint搭板对接合