论文部分内容阅读
一说到航天飞机,很多人的脑海里就会浮现出“失事”“‘哥伦比亚’号”“‘发现’号”这样一些熟悉的字眼。作为可重复使用的运输工具,航天飞机昔日的光环已渐渐地淡去。随着美国新航天器CEV的诞生,人们可能认为航天飞机将要永久地尘封在美国历史中了。事实远不是这样。美国现在所使用的航天飞机只是航天飞机的一种,称为航天运输机,主要用来完成航天运输任务。航天飞机还有另一大类——航天战斗机,这是一种有人驾驶的太空武器,是能在太空作战的航天飞机,将来很有可能会成为未来太空战争的主力。
When it comes to the space shuttle, many people’s minds come to terms like ’crash’, ’Colombia’, ’discovery’ and some other familiar words. As a reusable means of transport, the aura of the space shuttle has faded. With the birth of the new US spacecraft CEV, one might think that the space shuttle will be permanently dusty in American history. The truth is far from it. The space shuttle that the United States now uses is just one type of space shuttle, called a space shuttle, which is mainly used for the mission of space transportation. Space shuttle there is another major category - space fighter aircraft, which is a manned space weapons, space shuttle capable of fighting in space, the future is likely to become the main force in the future space war.