论文摘要一般包括：论文的目的和重要性；采用的研究方法；完成哪些工作；获得的主要结论。设计总说明主要介绍设计任务来源、设计标准、设计原则及主要技术资料。把这句改为同义句

The abstract of a paper typically includes the purpose and significance of the research, the research methods used, the work completed, and the main conclusions obtained.

The design specification mainly describes the sources of the design task, design standards, design principles, and major technical data.