佛罗里达州卡纳维拉尔角——本周一美国东部时间上午6点21分，日出前约45分钟，“发现号”航天飞机从NASA（美国航空航天局）的肯尼迪航天中心发射升空，尾焰照亮了佛罗里达州太空海岸的天空。
CAPE CANAVERAL, Fla. -- Space shuttle Discovery lit up Florida's Space Coast sky about 45 minutes before sunrise Monday with a 6:21 a.m.
考虑到无尾飞机在起飞离地前的纵向构型和参数与空中控制律有所不同，设计使用机轮承载开关进行控制律切换。
On the other hand, switch is used in control laws transformation, because longitudinal structure and parameters on land are different from those in air.
利用前位腹支-尾支组合进行大飞机纵、横向试验具有明显的优越性。
Using the combined support system of forward ventral strut and sting to conduct the longitudinal and lateral tests of the large aspect ratio aircraft is of superiority.
利用前位腹支-尾支组合进行大飞机纵、横向试验具有明显的优越性。
Using the combined support system of forward ventral strut and sting to conduct the longitudinal and lateral tests of the large aspect ratio aircraft is of superiority.
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