Main contents and scale : To introduce relevant equipment to produce oil purification equipment.

引进相关设备生产油净化装置.

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Some mechanical recovery wells in Chengdao Oilfield produce oil in tubing -- casing annular space.

胜利 埕 岛油田部分机械采油井存在油套环空出油现象.

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Georgia does not produce oil, but is a transit point for crude exports from Azerbaijan.

格鲁吉亚不生产石油, 然而是阿塞拜疆输出原油的重要传输站.

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