双层柱壳结构  ribbed cylindrical double-shells

加筋双层圆柱壳  double cylindrical shell; stiffened double cylindrical shell

局部双层柱面网壳  the partial double layer cylindrical reticulated shell

双层加筋圆柱壳  stiffened double cylindrical shell

双层圆柱壳  double cylindrical shells; double cylindrical shell; double layer cylindrical shell; double-cylindrical shell; double cylinder shell; Cylindrical Double-shell; Double cylinder

双层圆柱壳结构  double cylindrical shell structure; double cylinder shell structure

双层圆柱面网壳  double layer cylindrical lattice shell; double-layer reticulated cylinder shell

双层柱面网格扁壳  cylindrical double-deck reticulated shallow shell

双层柱面网壳  cylindrical lattice shells; double layer cylindrical reticulated shell; Double-layer barrel vaults

有限长加筋双层圆柱壳  finite stiffened double cylindrical shell

有限长双层圆柱壳  finite-length double cylindrical shell

层柱双氢氧化物  layered double hydroxide

单面涂层双层纸板  one-side coated duplex board

地壳双层模式  Double-storey pattern of the crust

生铀层双层结构  Uranium-bearing double—layer structure

双层壳  Double-shell

双层壳板  Double-shell

双层壳结构  double hull structure; double hull structures

双层壳体  double shell; Double-shell