buried oil pipe line

例句：

1. 1. The company's new underground oilpipeline line has been completed successfully.
   该公司新完成的地下石油管道线已成功完成。
2. 2. Theoil pipeline line is crucial for the transportationof oil products.
   石油管道线对于石油产品的运输至关重要。
3. 3. The buried oil pipeline line runsthrough several countries, connecting them economically.
   这条埋藏的石油管道线穿过几个国家，经济上将它们连接起来。