Optimization problem in operation has been put forward for Daqing-Tieling oil loop pipeline which undertook large-scaled technical transformation.

大庆至铁岭双线输油管道已进行了大规模的技术改造，对改造后的运行提出了最优化问题。

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The oil slick has now entered the loop current that runs from the Gulf of Mexico to the Florida Keys and up the east coast of the U.S., Jarvis said.

VOA: standard.2010.05.26

To keep the thousands of oil field workers from clogging the one artery to the oil sands, 500 buses run in a continuous loop from Fort McMurray to the oil fields.

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One is sending down devices to try to better understand where a current in the Gulf known as the Loop Current might take the oil.

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In the short run, there appears to be little risk the Loop Current will carry the oil around South Florida and up the East Coast, National Oceanic and Atmospheric Administration officials said.

WSJ: Gauging Harm to Ecosystem Could Take Years