电邮这篇文章 THE WAYS TO INCREASE OF EFFECTIVENESSFOR MWD SYSTEMS IN DRILLING WITH EM CHANNEL - PDF (俄语)
版权所有 © Goryachkin O.V., Grigorov I.V., Dolgopolov V.N., Petrov O.A., Sukhanov D.V., Khabarov E.O., Goryachkin O.V., Grigorov I.V., Dolgopolov V.N., Petrov O.A., Sukhanov D.V., Khabarov E.O., 2009
此作品已接受知识共享署名-非商业性使用-禁止演绎 4.0国际许可协议的许可。