3.In the spring 1499, Tang Yin took part in the examinations at the Board of Ritual in the capital Beijing, after having obtained first place in the metropolitan examinations in Nanjing.
4.One important benefit of spring contacts is that force is generated linearly and requires significantly less printed circuit board (PCB) real estate than conventional bent-metal or plug-and-socket systems, providing more room for functional components in the finished article.