美国航空航天管理局的发射主任迈克·莱因巴克说，这次发现号的最后飞行，曾经因为技术问题以及修理外油箱而几度延期，但它仍旧能承担太空飞行任务。

Discovery's final flight follows several delays due to technical problems and repairs to its external fuel tank, but NASA's mission launch director Mike Leinbach says the shuttle is still space-ready.

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在内置武器及不外挂油箱的情况下，F - 35 C机内可携带20,000磅燃油飞行向600海里外的目标并安全返回航母或是基地。

With internal weapons and no external fuel tanks, the F-35C with 20,000 pounds of internal fuel can fly more than 600 nautical miles to a target and return safely to ship or base.

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当一架飞机在非正常情况下落地时，油箱通常破裂，上千加仑易燃的航空油料外泻。

As an aircraft contacts the ground abnormally, fuel tanks are likely to rupture, spilling thousands of gallons of flammable aviation fuel.

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