Comprehensive test (mechanical principle or mechanical design). According to official website of Southwest Petroleum University, the mechanical re-examination subject is comprehensive test (mechanical principle or mechanical design), and the mechanical engineering major of Southwest Petroleum University is equivalent to the test subject of education plus basic mechanical production and mechanical testing skills. Southwest Petroleum University is called "Southwest Normal University" for short, and its main campus is located in Chengdu, Sichuan Province. It was established by the Ministry of Education, Sichuan and China Oil and Gas Group Co., Ltd. and sinopec group and China Offshore Oil Group Co., Ltd. ..