唯一的问题是这样的计划将需要一个全新的外部燃料箱的建造。
The only problem is that such a plan would require the construction of an entirely new external fuel tank.
奋进号"原定于6月13日发射，但因外部燃料箱某处有氢燃料泄漏而推迟了发射时间。
The space ship was originally scheduled for lift-off on June 13, but was first postponed because of a leak associated with the hydrogen venting system outside the shuttle's external fuel tank.
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)。
A shuttle on the launch pad measures 184 feet (56 meters) tall from the tip of the external tank down to the aft skirts of its twin solid rocket boosters.
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