在航天活动中,前苏联/俄罗斯的质子号火箭发射最为频繁,它是目前世界上运载能力最大的火箭之一。它先后有二、三、四级3种型号。其中最大一种四级火箭全长58米,起飞质量800吨,能将21吨重的载荷送入近地轨道,或将5吨的有效载荷送入地球同步转移轨道。它成功地发射过“礼炮”号和“和平”号空间站及一系列金星、火星探测器等,在国际空间站的建造中,它已将曙光号多功能货舱(图示)、星辰号服务舱送上太空。在国际商业卫星发射市场上质子火箭也将是有力的竞争者。 In space activities, Proterozoic / Russian proton rocket launches most frequently, and it is currently one of the most capable rockets in the world. It has two, three, four three models. One of the largest four-stage rockets, measuring 58 meters in length and 800 tons in takeoff capacity, can deliver 21 tons of payload into orbit and 5 tons into the Earth’s geosynchronous orbit. It has successfully launched “Salyut” and “Peace” space stations and a series of Venus, Mars rovers, etc. In the construction of the International Space Station, it has put the number of Shuguang multi-function hold (pictured) On space. Proton rocket will also be a strong competitor in the international commercial satellite launching market.