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[求助]
求一段加氢专业的英译汉
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| The samples were initially activated to 300 ℃ to remove the physisorbed water followed by cooling in nitrogen atmosphere and then the FTIR spectra were recorded (Fig. 2). All the r-alumina samples displayed a broad absorption peak at around 3500–3700 cm-1. |
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2楼2011-08-18 08:59:35
Carena
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3楼2011-08-18 09:32:14
hongliannu
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4楼2011-08-18 11:18:09
