The power system of LM-5 second core stage left the Tianjin factory of the Capital Aerospace Machinery Corporation to prepare for its test run at the Beijing Institute of Aerospace Testing Technology Propulsion,a subsidiary of Academy of Aerospace Liquid Propulsion Technology(AALPT).In fact,the power system test run of the second core stage would be more The power system of LM-5 second core stage left the Tianjin factory of the Capital Aerospace Machinery Corporation to prepare for its test run at the Beijing Institute of Aerospace Testing Technology Propulsion, a subsidiary of Academy of Aerospace Liquid Propulsion Technology (AALPT) .In fact, the power system test run of the second core stage would be more