... 外部发光 external photoemission 航天飞机的外槽external tank of shuttle (介质材料之中)熄光系数 extinction index ...
双语例句
1
A shuttle on the launch pad measures 184 feet (56 meters) tall from the tip of the externaltank down to the aft skirts of its twin solid rocket boosters.
从外部燃料箱的顶端至船尾固体火箭助推器的裙摆，发射台上的航天飞机高184英尺(56米)。
2
Around two minutes after launch, the boosters on either side of the shuttle will fall away, followed shortly afterwards by the giant external fuel tank strapped to the spaceship.
A major exception, the space shuttle orbiter, USES three onboard liquid-fuel main engines supplied by a disposable externaltank and a pair of solid-fuel boosters to reach space.