It's been used 23 times. Wanfang data's paper was downloaded 23 times, which means it was used 23 times. You can find it on Wanfang, with downloads and browsing times next to it. Log in to Wanfang account to see the download times. The full-text database of China's dissertations is an important part of Wanfang's data knowledge service platform, which selects the master's and doctoral dissertations and postdoctoral reports of national key degree-granting units.