车装砾石充填装置  truck-mounted gravel injection unit

滑套砾石充填装置  sliding sleeve gravel pack system

砾石充填装置  gravel-pack assembly; gravel packing hookup

袋装砾石充填砂  sacked gravel packing sand

有效的砾石充填  functional gravel pack

不污染的砾石充填液  nondamaging gravel packing fluid

处理事故的砾石充填  EgP

砾石的充填体积  bulk volume of gravel

密实的砾石充填层间密封  solid gravel seal

密实的砾石充填柱  solid gravel column

生产筛管段周围的砾石充填  main pack

实际尺寸的砾石充填模型  full-scale gravel packing model

无空穴的砾石充填  holiday-free gravel pack

用高粘携砂液作业的砾石充填  viscous carrier placed pack

导叶不同步装置(MGV装置)  biochemistry engineering

导叶不同步装置MGV装置  misaligned guide vane MGV

矫形外科用的装置的安装和调整  Fitting and adjustment of orthopaedic device

精巧的装置的  gadgeted

垃圾填装装置  Rubbish loading installation