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三明治可三年不变质据报道,美国军方发明一种不怕风吹雨淋的三明治.它在26℃下可以保持3年不变质,在38℃的高温下可以保存3个月不变味.这样美军士兵在极端条件下采取军事行动时就不必忍受饥饿之苦了.
The sandwich is three years old and it is reported that the U.S. military has invented a sandwich that is not afraid of the wind and rain. It can stay indestructible for 3 years at 26°C and can remain unchanged for 3 months at 38°C. When soldiers of the United States take military actions under extreme conditions, they do not have to endure hunger.