Study of China's participation in UN peacekeeping operations 并列题名:Study of China's participation in UN peacekeeping operations Cutting-edge issues of China's participation in UN peacekeeping operations Study on China's participation of regional economic integration Study of China's participating in the world heritage regime Study on MNCs' participation in Chinese standardization Dilemma and prospect of the UN peacekeeping operation UN's responsibility in peacekeeping operations Legal aspects of United nations peacekeeping operations Study of value connotation in engineering selections