Nuclear detonations are the most devastating of the weapons of mass destruction.

核爆是最具毁灭力量的大规模杀伤武器。

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As outlined in that report, the most severe threat facing any transportation system is a weapon of mass destruction such as a nuclear device or a biological weapon.

正如报告所概括的，所有交通系统面临的最严重威胁，是大规模毁灭性武器，例如核设备或生物武器。

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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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Turner -- who backs the elimination of nuclear weapons and weapons of mass destruction -- wanted to know whether the administration has considered ridding the world of weapons of mass destruction and supporting nuclear nonproliferation, rather than pursuing a missile defense program that would cost billions.

CNN: Security adviser says U.S. must be prepared for nuclear threats

He said the next stage was to confirm its exact identity using mass spectrometry and nuclear magnetic resonance analyses to produce it chemically on a larger scale.

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While in that job he headed efforts to reduce threats to the United States from weapons of mass destruction, including nuclear, biological and chemical weapons.

BBC: NEWS | Middle East | Bush's new man in the Mid-East