Study on the development of training equipment of foreign armies 并列题名：Study on the development of training equipment of foreign armies Study on the development of opening economy in central China Study on the in-depth development of the military reform of foreign countries Study on the development of U.S. intelligence analysis theories Study on the development of energy efficient equipment manufacturing industry in China Study on the development of free ports and emerging marine industries Study on the development of local fiscal policies 并列题名：Study on the in-depth development of the military reform of foreign countries Study on the development of the Yue culture