混凝土砌块空心  hollow concrete blocks

矩形空心块  rectangular hollow block

空心块  hollow pot; a block; hollow block

空心块茎  Hollow center

空心块楼板  hollow block floor

空心块石层  hollow concrete brick layer

空心块体  hollow block

空心心轴  hollow mandrel; hollow spindle

空心芯轴  hollow mandrel shaft

无底空心块体  bottomless hollow block

(DHS)空心扩孔器  DHS)Hollow reamer

空心村改造  hollow village reconstruction

0(#)空心胶囊  0(#) hollow capsule

220kV空心瓷绝缘子  220kV porcelain hollow insulator body

35kV干式空心电抗器  35kV dry-type air-core reactor

C60空心纳米壳  C60 hollow nanoshell

EPS空心球  EPS hollow sphare

FRP-混凝土-钢双壁空心管  FRP-concrete-steel double-skin tube

FRP-混凝土-钢双壁空心管短柱  FRP-concrete-steel double-skin tubular stub