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chaokai

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gfbrjmk

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chaokai(½ð±Ò+2):лл 2010-12-30 09:19:02
The problems and the solutions of asphaltene accumulation on the oil well wall
4Â¥2010-12-29 20:41:39
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chaokai(½ð±Ò+2, ·­ÒëEPI+1):лл 2010-12-30 09:18:36
The problems of asphaltene deposits in the wellbore of oil well and solutions
2Â¥2010-12-29 15:16:31
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chaokai(½ð±Ò+2):лл 2010-12-30 09:18:50
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Deposition of asphaltene in wellbore of oil well and the solutions.
3Â¥2010-12-29 20:31:34
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yang142538

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