In the thesis, the main research topic is mechanical switch, including SPST, SPDT and keyboard switch.

本设计中主要研究的是机械类开关，包括单刀单掷开关和单刀双掷开关及键盘开关。

youdao

The problem of digital resources' quality is increasingly becoming a main research topic concerned by the whole society.

数字资源质量问题日益成为社会关注的热点。

youdao

As to the main research topic of this paper and its subsequent academical achievements, the "conclusion" section gives a detailed account.

对于本文的研究及其成果，在文后专设有“结论”一节给予说明。

youdao