Those qualities were never demonstrated more dramatically than in the flight of the 13th Apollo mission in April, 1970, when an oxygen tank exploded en route to the moon.

• 没有哪项任务所展现出的品质像1970年4月第13次‘阿波罗’登月飞行那样令人印象深刻，在飞往月球途中，氧气罐破裂。