The essential condition for the decay of the vacuum is the presence of an intense electric field.
真空衰变的基本条件是存在强电场。
A nucleus that large cannot be stable, but it might be possible to assemble one next to a vacuum for long enough to observe the decay of the vacuum.
这么大的原子核不可能是稳定的，但在足够长的时间内，在真空附近组装一个原子核以观察真空的衰变是可能的。
A third sources, the warming-enhanced decay of organic matter in forests and soils, especially in the middle and higher latitudes, is now being recognized as potentially significant.
第三个来源，特别是在中纬度和高纬度地区，森林和土壤中因气候变暖而加剧的有机物腐烂，现在被认为具有潜在的重大意义。
The decay of Christian belief and practice is not a loss but rather an opportunity for poetry in Crane.
在克莱恩看来，基督教信仰和践行的衰败，并不是损失，反而是诗歌新生的机会。
Geological dates are usually obtained by using the rates of decay of various radioactive elements found in minerals.
地质年代通常是通过矿物中发现的各种放射性元素的衰变率来获得的。
Geological dates are usually obtained by using the rates of decay of various radioactive elements found in minerals.
地质年代通常是通过矿物中发现的各种放射性元素的衰变率来获得的。
For he still clung, amid the decay of moral platitudes, to the discredited ideal of chivalry.
虽然陈腐的道德已经没落，他却仍然坚守遭到怀疑的骑士风范。
The deal highlights Russia's increasing military ambitions and the decay of its own arms industry.
这笔交易凸显了俄罗斯日益增长的军事野心和它自身军工业的衰败。
Such facilities could search for other hypothesized phenomena such as the extremely rare decay of protons.
这样的装置有助于发现证实更多的假说现象，如质子的稀有衰变。
Heat from the decay of naturally occurring radioactive elements could keep a planet warm enough for water.
放射性元素在自然衰败过程中所产生的热量能使星球上的水维持液态形式。
This altered the propagation of GPS signals and slowed the rate of decay of space debris in low Earth orbit.
这样就改变了GPS信号的传播，减小了地球底层轨道上空间碎块的衰减速度。
These rays are emitted during the decay of certain versions of uranium, iodine, cesium and other elements.
铀，碘，铯等元素在一定的半衰期内都可以释放出上述射线。
But imagine that what's gone on is there's been decay of the brain structures that underwrite the cognitive functioning.
但这样设想一下，大脑的结构正在败坏，破坏了认知能力。
The ash contains minerals such as zircon that can be dated precisely from the radioactive decay of some of their components.
这些火山灰中含有锆石等矿物，这些矿物中的某些组分允许进行精确的放射性测年(以确定精确的年代数据)。
She also said that the experiment had another part, involving _two_ universes around the choice point of the time of decay of the atom.
她还说，这个实验还有另外一个部分，是关于在原子衰变的刹那间的两个宇宙。
Photographer Jonathan Andrew has traveled across Europe to document the decay of WW2-era military bunkers, standing strong and Stoic against time.
摄影家乔纳森·安德鲁辗转欧洲各地，记录下了二战时期军事掩体的衰败现状，它们默默地伫立在尘嚣之外。
The positrons, produced by the decay of radioactive sodium, are cooled into a similarly sized cloud of around 1m particles and held in a neighbouring trap.
由放射性钠衰变产生正电子，冷却后形成一个由大约100万个正电子组成的体积同样大小的粒子云团，这团正电子被存放在相邻的一个容器中。
That fall into the cave happened 1.977 million years ago, according to dating based on the rate of decay of uranium in the rock layer that holds the fossils.
根据保存这些化石的岩石层里铀衰变率的基础上所确定的年代，那次掉入洞穴事件发生在197.7万年前。
The story begins, in a sense, in classrooms around the world, where students are taught that the rate of decay of a specific radioactive material is a constant.
这个事情要从世界各地的教室里说起，在那里学生学习到特定核素的衰变速率是恒定的。
Indeed, the decay of Congo's Belgian-built roads, which in 1960 ran to over 100,000km, must rank as one of the greatest boons to forests since the Black Death.
实际上刚果在比利时统治时期修筑的道路，建于1960年全长100,000千米，的坍塌，是继黑死病后对森林的又一恩惠。
Indeed, the decay of Congo's Belgian-built roads, which in 1960 ran to over 100, 000km, must rank as one of the greatest boons to forests since the Black Death.
实际上刚果在比利时统治时期修筑的道路，建于1960年全长100,000千米，的坍塌，是继黑死病后对森林的又一恩惠。
His subjects were death, the disappearance or decay of the body, and in the detective or quasi-scientific stories, the life of the mind that can defeat mortality.
他的主题涉及死亡、人体的消失或衰朽。他的侦探小说或半科幻小说则突出了可战胜死亡的心灵之活力。
Other techniques focus on delaying blindness, including one involving a capsule implanted in the eye to release proteins that slow the decay of light-responding cells.
其它的技术着力于延迟失明。有一种技术是将胶囊植入眼中，胶囊释放出的蛋白质可以缓解光反应细胞的衰退。
Radon, the radioactive gas given off from the decay of naturally occurring uranium in soil, has been noted by the EPA to be a major environmental cause of lung cancer.[5]The
氡，放射性气体，由泥土中自然出现的铀衰变中释放。EPA已经注意到它是肺癌的主要环境原因。
The KamLAND detector in Japan can detect anti-neutrinos generated by the decay of uranium and thorium-the two elements responsible for most of the radioactive heating of the Earth.
日本的KamLAND探测器可以检测衰变的铀和钍产生的反中微子，这两种元素产生了地球放射热量中的很大部分。
I believe that his friends, above all Halifax, came to the conclusion that he must be rooted out of the life he was leading at Trinity which must soon lead to decay of mind and health.
我相信他的朋友们，首先是哈利法克斯得出这样的结论：他必须从在三一学院沿循的生活中拔出脚来，否则它必定很快会导致精神和健康的衰落。
Ephraim Fischbach, a physics professor at Purdue, was looking into the rate of radioactive decay of several isotopes as a possible source of random numbers generated without any human input.
普渡大学物理教授EphraimFischbach，将探测几种同位素的放射性衰变速率的方法作为一种没有人为输入因素干扰的产生随机数的可能方法。
Ephraim Fischbach, a physics professor at Purdue, was looking into the rate of radioactive decay of several isotopes as a possible source of random numbers generated without any human input.
普渡大学物理教授EphraimFischbach，将探测几种同位素的放射性衰变速率的方法作为一种没有人为输入因素干扰的产生随机数的可能方法。
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