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Ta-ch'ing

Pinyin �Daqing � oil field in Heilungkiang province, China, one of the country's most important sources of oil. It is situated in the north of the Sungari-Liao River basin, between Tsitsihar and Harbin, in the general vicinity of An-ta, northwest of Harbin. The field was discovered in the late 1950s and drilling began in 1958, often in difficult conditions caused by the extreme winter cold and by

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