The integrity maintenance of old pipeline network is a major task for pipeline transportation company.
老龄管网的完整性维修是管道输送公司的主要任务。
This system has already been used by pipeline Technology Company.
本套系统已经成功地被中石油管道技术公司采用。
An oil company plans to construct a east to west from the main pipeline.
某石油公司计划建造一条由东向西的主输油管道。
An oil company plans to construct a east to west from the main pipeline.
某石油公司计划建造一条由东向西的主输油管道。
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