由中国航天科技集团公司研制的我国新一代中型运载火箭长征七号于6月25日20时在我国首个海滨发射场——海南文昌航天发射场首飞成功,标志着我国载人航天工程空间实验室任务正式拉开序幕。长征七号运载火箭由中国航天科技集团公司中国运载火箭技术研究院抓总研制,是为满足我国载人空间站工程发射货运飞船的需 The launch of the new generation of medium-sized launch vehicle Long March No.7, developed by China Aerospace Science and Technology Corporation, at 20:00 on June 25 at the first beachfront launch site in China-Hainan Wenchang Space Launch Site marked the success of China’s manned space project Laboratory tasks officially kicked off. Long March VII launch vehicle by the China Aerospace Science and Technology Corporation, China Academy of Launch Vehicle Technology Research Institute general catch, is to meet China’s manned space station project launches cargo spacecraft needs