Because of the tremendous amounts of energy liberated per unit mass in a nuclear detonation, temperatures of several tens of million degrees centigrade develop in the immediate area of the detonation.

由于核爆时每单位质量所释放的巨大能量，爆炸中心将产生数千万摄氏度高温。

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After the detonation of nuclear bombs at the end of world War II, the world moved deeper into the atomic age and the nuclear standoff between the superpowers.

在第二次世界大战末期引爆核弹之后，世界步入原子时代，深深陷入超级大国之间的核对峙之中。

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The electromagnetic pulse generated by the detonation of a single nuclear weapon at high altitudes can be a threat to military systems located as much as a thousand miles away.

单个核武器高空引爆所产生的电磁脉冲能对一千英里以外的军事系统造成威胁。

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The world has gone over sixty years without another detonation of a nuclear weapon in warfare.

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Military planners understand the vulnerability of the grid to upset, but have been more concerned with man-made threats such as the electromagnetic pulse that would be generated by a high-altitude nuclear detonation.

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They have long since outlived their design life and for at least 18 years none of them has been tested in an operationally realistic way (that is, with an underground nuclear detonation).

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