美国X-37B号和中国的沈龙号航天器分别发射在第7次和3次飞行任务上。 US X-37B and China's Shenlong spacecraft launched on their 7th and 3rd missions, respectively.

美国的X-37B和中国的沈龙是秘密的无人驾驶航天器,在各自的军事战略中发挥着重要作用。 The US' X-37B and China's Shenlong are secretive, unmanned spacecraft, playing significant roles in their respective military strategies. 两国分别将各自的航天飞机送入轨道,美国X-37B第7次飞行任务和中国沈隆第3次飞行任务。 Both countries launched their respective space planes into orbit, with the US X-37B on its 7th mission and China's Shenlong on its 3rd. 这些可重复使用的独立操纵航天器包含一个用于卫星部署的货舱,对于各自国家的空间战略来说,其复杂性也有所增加。 These reusable, independent-maneuvering spacecraft contain a cargo bay for satellite deployment and have increased in complexity for their respective countries' space strategies.