美国联合技术公司的空间飞行系统部已设计出一种不载人的、部分可重复使用的大推力发射工具,其目的是减少航天飞机有效载荷存储量,并补充空间站和“星球大战”计划所需的航天飞机发射能力。但它 United Technologies Corp.’s Space Flight Systems Division has devised an unmanned, partially reusable thrust thruster with the aim of reducing space shuttle payload storage and complementing space stations and Star Wars programs Space shuttle launch required. but it