When was the first space vehicle sent up?

第一颗宇宙飞船是什么时刻发射的？

NASA has cancelled its plans for a post-shuttle space vehicle. Until U.

美国航空航天局已经取消了建造后航天飞机时代太空飞行器的计划。

Up to now, it is only the rocket which can propel a space vehicle.

迄今为止，只有火箭才能推进宇宙飞行器。

It provides a new way for space vehicle detection and positioning.

为空间飞行器的探测提供了一种新型的手段。

A UFO is a strange object that people believe is a space vehicle from another planet?

U FO是一种在空中出现的奇怪物体，人们一般认为它是外星人乘坐的空间旅行工具。