Tell readers why they need to read this report, and give a very brief overview of what you're going to cover in the mainbody of the report.
告诉读者为什么他们需要阅读这份报告，并给予一份简介说明您将会在报告中写一些什么内容。
2
The main parts include pump body, pump cover, impeller, axis, sealing rings, intermediate support, sealing and suspension parts and other components.
泵主要由泵体、泵盖、叶轮、轴、密封环、中间支架、密封和悬架部件等组成。
3
The legal responsibilities of tax cover the legal responsibility of tax authority as the main administrative body, the legal responsibility of tax staff and the legal responsibility of comparative.