1. The principles of Self-pierce riveting with semi tubular rivet, self-pierce riveting with solid rivet, die less clinching, clinching and Hydro-clinching are introduced.
主要介绍半空心铆钉自冲铆接、实心铆钉自冲铆接、无模铆冲连接、有模铆冲连接、液压铆接等技术的工作原理，比较各种连接技术的优、缺点。
2. The principles of Self-pierce riveting with semi tubular rivet, self-pierce riveting with solid rivet, die less clinching, clinching and Hydro-clinching are introduced.
主要介绍半空心铆钉自冲铆接、实心铆钉自冲铆接、无模铆冲连接、有模铆冲连接、液压铆接等技术的工作原理，比较各种连接技术的优、缺点。
3. The principles of Self-pierce riveting with semi tubular rivet, self-pierce riveting with solid rivet, die less clinching, clinching and Hydro-clinching are introduced.
主要介绍半空心铆钉自冲铆接、实心铆钉自冲铆接、无模铆冲连接、有模铆冲连接、液压铆接等技术的工作原理，比较各种连接技术的优、缺点。
4. Anthony Afterwit — Franklin created this "gentleman" to provide a humorous look at matrimony and married life from a male point of view. Mr. Afterwit appeared in Franklin's Pennsylvania Gazette.
安东尼事后诸葛亮-这位“绅士”总是以一个男人的角度对夫妻关系和婚姻生活发牢骚。
5. In 1721, James Franklin(brother of Benjamin Franklin)be-gan to publish a newspaper, the New England Courant.
1721年，詹姆斯·富兰克林（本杰明·富兰克林的哥哥）开始出版一种报纸，叫《新英格兰报》。
