The drill string of ERW is taken as research object, the dynamic problem is brought forward during making hole, and the mechanics model about each dynamic action is established.

　
英 美
  • 以大位移井鉆柱的部分或整體為研究對象，提出了鉆井各種動(dòng)態(tài)問(wèn)題，建立了鉆柱的各種動(dòng)態(tài)行為的力學(xué)模型。
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