Sodium din-butyl naphthalene sulfonate was prepared from n-butyl alcohol, naphthalene and fuming sulfuric acid.
本文提供二正丁基萘磺酸钠及二异戊基萘磺酸钠之制备方法。
The dissolved nitrogen (DIN) concentrations in the Wujiang River basin were much higher than the global average values and the main form of nitrogen was nitrate nitrogen (NO3-N).
乌江流域溶解无机氮含量较世界平均水平高，其主要存在形式为硝态氮（NO_3-N）。
The dissolved nitrogen (DIN) concentrations in the Wujiang River basin were much higher than the global average values and the main form of nitrogen was nitrate nitrogen (NO3-N).
乌江流域溶解无机氮含量较世界平均水平高，其主要存在形式为硝态氮（NO_3-N）。
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