The borehole deviation correction technique with bottom hole assembly and its application in Xinjiang oil Well YX-1 were introduced.
介绍了井底钻具组合纠偏技术及其在新疆YX - 1油井中的应用。
HWK-1A non switchboard indoor telephone commutator connect YX-1 (2) indoor loud box.
HWK - 1a型无主机室内电话扩音转接器配接YX - 1(2)型室内音箱。
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