2005年到2007年，华北油田连续3年向管道违法占压行为“亮剑”，累计清理22条管线1901处占压，为油气正常输送创造良好条件。

"2005 to 2007, Huabei Oilfield pipeline for 3 years to ACTS of unlawful tying" Sword ", a total of 22 clean-up tie line 1901, in order to create good conditions for oil and gas normal delivery."

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