N-COUNT Subheadings are titles that divide part of a piece of writing into shorter sections. 副标题
This user has chosen bold formatting for a main heading and bold plus italics for a sub-heading.
该用户为主标题选择了粗体，为子标题选择了粗体加斜体。
Esters of ethyl alcohol with acid-function organic compounds of sub-Chapters I to VII are to be classified in the same heading as the corresponding acid-function compounds.
乙醇与本章第一分章至第七分章的酸基有机化合物所构成的酯，应按有关酸基化合物归类。
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