bed ladder

同义词释义

1)bed ladder,下节梯2)bed section,下节梯3)main section,下节梯4)Downhole choke,井下节流5)lower nodal point,下节点6)Peduncle,穗下节7)downhole throttle,井下节流8)underground restriction,井下节流9)interlining under the waist line,下节衬10)downhole-choke,井下节流嘴