qín dài
Qin dynasty (221-207 BC), founded by the first emperor Qin Shihuang 秦始皇[Qin2 Shi3 huang2], the first dynasty to rule the whole of China
秦
qín
short name for 陝西|陕西[Shan3 xi1]
代
dài
to be a substitute for; to act on behalf of; to replace; to substitute