石油管材的选择方案应兼顾技术要求和经济效益。
The plan of materials selection for OCTG needs to be made based on consideration of both the technical requirements and the economic benefits.
石油管材的选择方案应兼顾技术要求和经济效益。
The plan of materials selection for OCTG needs to be made based on consideration of both the technical requirements and the economic benefits.
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