As part of this, in this issue we present a new series: "Science and Technology in Ancient China." The first item we look at is a water-powered Song dynasty astronomical clock, whose secrets had been lost for centuries.
因此，我們特別在這一期為讀者開了一個「中國古科技」的系列，首先探討的是失傳多年的宋朝「水運儀象台」。