The device is comprised of transparent well bore, hoisting mechanism, gravel packing device, data acquisition system and image processing system.

 
  • 該裝置由透明模擬試驗井筒、起升系統、礫石充填設備、數據采集和圖象處理系統五大部分組成。
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国内精品美女A∨在线播放xuan