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2013-05-23 12:21
求翻譯：Surface oil sand processing has been in commercial operation for more than 40 years in Alberta, Canada. In 2010, oil companies in Alberta produced 大約161萬barrels of bitumen per day with 大約85.8 萬barrels(53%) by mining method, equivalent to annual production of 4970萬 metric tons. China has a reserve of 60億噸oil sands, main是什么意思？ 待解決
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Surface oil sand processing has been in commercial operation for more than 40 years in Alberta, Canada. In 2010, oil companies in Alberta produced 大約161萬barrels of bitumen per day with 大約85.8 萬barrels(53%) by mining method, equivalent to annual production of 4970萬 metric tons. China has a reserve of 60億噸oil sands, main
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