space lifeboat的意思|示意

In 2010, it was resurrected, and downsized to be used as a "lifeboat," in the event of an emergency on the space station.

在2010年，该项目是重新启动，但是只是精简到作为一个“救生艇”的用途上，只是在国际空间站上发生紧急事件的时候使用。

The resulting design, NASA's HL-20, underwent significant development and testing and was intended to be a lifeboat for astronauts aboard the space station. But the HL-20 program lapsed.

HL-20已完成很多重要进展和测试，原计划用做国际空间站宇航员的救生船，但HL-20项目最终被流产。