Patents
一种井下测压井上节流控制的深井注浆减压装置
Release Time:2019-01-26
  • Institution:
    机械工程学院
  • Application Number:
    200920028103.3
  • Number of Inventors:
    2
  • Service Invention or Not:
    No
  • Application Date:
    2009-06-19
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