1、
在高沸点胺的存在下萜醇与乙酸酐反应以提供萜烯酯。
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2、
The low-boiling inflammable part and the high-boiling residue both had to be discarded as useless.
低沸点 易燃部分和高沸点之残渣油均须弃置用.
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3、
