科技论文提要（Abstract)是对一篇科技论文主要内容的概括，一般位于文章正文之前，常独立于正文。提要的开头常用提要主题句（Topic Sentence of Abstracts)。提要主题句常用一些固定的句式。例如：
1）本文介绍了……
本报告介绍了……
This paper (article) intruduces……
This report intruduces.……
… …is (are) introduced in this (the)paper (article).
……is(are)introduced in this (the) report.
2）本文描述了……
本报告描述了……
This paper (article) describes……
This report describes……
.… …is (are) described in this (the) paper (article).
……is(are) described in this (the) report.
3）本文讨论了……
本报告讨论了……
This paper (article)discusses……
This report discusses …
……is (are) discussed in this (the) paper (article).
………is(are) discussed in this (the) report.
4）本文提出了……
本报告提出了……
This paper (article) presents………
T'his report presents……
……is (are) presented in this (the) paper (article).
……is (are) presented in this (the) report.
5）本文研究了……
本报告研究了……
This paper (article) studies……
This report studies……
This paper (article) makes a study of..…
This report makes a study……
… …is (are) studied in this (the)paper (article).
………is (are) studied in this (the)report.
6）本文调查了……
本报告调查了……
This paper (article) investigates……
This report investigates……
This paper (article) makes investigations on
This report makes investigations on……
… …is (are) investigated in this (the) paper (article).
… …is (are) investigated in this (the) report.
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