First, the weapons should be intended for use only in retaliation after a nuclear attack. Second, the possession of the weapons must be a temporary expedient.
首先，这些武器应当只在遭受核袭击后反击时才使用。其次，这些武器的拥有必须是一种临时的应急手段。
He added, at this speed, they will be generating more heat per cubic centimeter than a nuclear reactor.
他补充，在这种速度下，每立方厘米产生的热将超过核反应堆。
It's like a rotary phone, where you could turn to a pageboy, or that haircut that looked like a nuclear bomb exploded your bangs, and then the Peter Pan look.
就像个旋转式电话，在那儿你能做个童花头，或者是爆炸式的刘海，再或者一个彼得潘的发型也行。
The phosphorylated SR protein moves into the nucleus then relocates to a nuclear speckle.
老磷酸化蛋白进入细胞核，然后迁至核斑纹。
But the idea of creating a nuclear Armada continued to exist.
但是建立核舰队的愿望依然存在。
Q: Iran said it had signed a nuclear fuel swap deal with Turkey and Brazil.
问：伊朗方面表示，日前已经与土耳其、巴西达成核燃料交换协议。
Like Barack Obama, Mr Romney declares that a nuclear Iran is "unacceptable".
和奥巴马一样，罗姆尼宣称一个拥有核武的伊朗是不可接受的。
A nuclear blast produces a blinding flash, burning heat and crushing wind.
核爆炸会产生眩目的闪光、灼热和具有破坏力的强风。
Uranium 235 — the fuel inside a nuclear reactor — undergoes nuclear fission.
铀235——反应堆中的燃料——经过核裂变。
Ominously, there is new activity, too, at a site used in 2006 for a nuclear test.
更糟的是在2006年进行核试验的地点还有一个新的活跃的试验。
Actually, what I think is: if Leonard Lauder is retired, I'm a nuclear physicist.
实际上，要我说：若是伦纳德·劳德退休，那我就该是核物理学家了。
Now what I'd like to wrap up with is what does all this mean to a nuclear engineer?
现在，我最后要总结的是,这对一个核工程师来意味着什么呢？
He said Japan is coming out of a nuclear disaster and is struggling with low growth.
他还说，日本才要从核灾走出来，正在和低增长率搏斗。
So it's unlkely that there will be a nuclear confrontation ? between India and Pakistan?
所以印度和巴基斯坦之间,不太可能,出现核对抗了？
In a nuclear reactor, it is essential that just the right number of neutrons are present.
在核反应堆中，保持合理数量的中子存在至关重要。
Similarly, a nuclear Iran might prompt Saudi Arabia, Turkey, Syria or Egypt to follow suit.
同样的，伊朗的核计划可能促使沙特阿拉伯、叙利亚或埃及依样行事。
"Until we commit to going back to Mars, we're not going to have a nuclear rocket," McDaniel said.
“我们在决定去火星之前，都不会拥有一枚核能火箭。”麦克·丹尼说到。
Fears of a nuclear disaster after Japan's earthquake will harden minds against nuclear power.
日本大地震之后，对核灾难的恐惧将会坚定人们反对核发电的决心。
Mr Amano now wants improved coordination among experts during the early stages of a nuclear crisis.
天野先生现在希望在核危机的早期阶段使专家意见协调。
People can get cancer from low doses of ionizing radiation, the kind released in a nuclear accident.
人们可能会因为核事故释放的小剂量电离辐射而致癌。
What general advice can be given to food consumers and producers in the event of a nuclear emergency?
遇有突发核事件的情况下，可向食品消费者和生产者提供哪些一般性建议？
Among other things, his team has designed a nuclear reactor that would use nuclear waste as its fuel.
除此之外，他的团队设计了一个将核废料作为燃料的核反应堆。
Like conventional power plants, a nuclear site cranks out electricity using steam-driven turbines.
就像普通的发电厂一样，一个核发电厂需要蒸汽涡轮来发电。
In the neighboring hall there is the turbine - the second most important unit in a nuclear power plant.
邻近的大厅安装着汽轮机，这是核电厂里第二重要的单元设备。
So far NASA is exploring two options for propulsion there? A nuclear thermal rocket and a chemical engine.
迄今为止NASA研究了两种前往那里的备选推进器：核热火箭和化学发动机。
Residents living near a nuclear facility have been evacuated from the region of its overheated reactor.
生活在放射性设备附近的居民已经从过热的反应堆区域撤离。
Residents living near a nuclear facility have been evacuated from the region of its overheated reactor.
生活在放射性设备附近的居民已经从过热的反应堆区域撤离。
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