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
袋装砾石充填砂
sacked gravel packing sand
不污染的砾石充填液
nondamaging gravel packing fluid
实际尺寸的砾石充填模型
full-scale gravel packing model
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
misaligned guide vane MGV
矫形外科用的装置的安装和调整
Fitting and adjustment of orthopaedic device
垃圾填装装置
Rubbish loading installation