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。
A heading node may, in turn, contain sub heading nodes (level 2) and may also contain some sentences.
一个标题节点，依次，可以包括子标题节点(层次2)，还可以包含有一些句子。
Figure 6 lists a few different potential sub-types of problems under the general problem heading of "Application performs poorly or unexpectedly," which Kathy had selected.
图6列出了一些不同的、可能的子类型，这些子类型都隶属于标题为“Applicationperformspoorlyorunexpectedly”的问题，即Kathy所选择的类型。
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。
The purpose for the later is to improve the existing rotor screw drill for high efficiency. Subject heading: horizontal drilling screw drill tool control bending sub st...
研制后者的目的，在于改善现有中空转子螺杆钻具的软特性和低效率。
The purpose for the later is to improve the existing rotor screw drill for high efficiency. Subject heading: horizontal drilling screw drill tool control bending sub st...
研制后者的目的，在于改善现有中空转子螺杆钻具的软特性和低效率。
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