radioactivity

Giant detectors built to look for a hypothetical form of radioactivity in which protons decay never found such a thing.

为了探测质子衰变放射性的假想形式，人们修建了巨大的探测器，但这些探测器从没发现这种东西。

This led her to deduce that there were other substances within pitchblende that had properties of radioactivity.

于是玛丽推断出，在沥青铀矿中可能还有其他具有放射性的物质。

Though it was more likely that these events were due to cosmic rays or radioactivity, the results were consistent with a detection of WIMPs.

虽然它更有可能是这些事件是由于宇宙射线或放射性物质，其结果与一个懦夫检测一致。

Some of that radioactivity could carry in the atmosphere to the west coast of the United States.

某些核辐射可能通过空气传播到美国西海岸。

There was no inkling of the size of the universe beyond the Milky Way, and radioactivity, relativity and quantum theory were unimaginable.

人们对银河那边存在的宇宙究竟有多大一无所知，辐射能、相对论和量子论更是想都不敢想的问题。

The Navy says the submarine's nuclear reactor was not damaged , there was no leak of radioactivity and the vessel's hull is intact .

美国海军说，旧金山号的核反应堆没有损伤，没有放射性物质泄漏，潜艇舰体也完好无损。

Even radioactivity can expose the source as synthetic or natural. Synthetic vanillin is prepared from coal tar, which has no radioactivity.

通过放射能可以揭露产品的来源是天然的还是人造合成的。

Will there be any sort of environmental hazards? ei. Radioactivity, biohazards, etc.

会有环境破坏吗？比如核辐射，生化灾难之类的。

The understanding of radioactivity allowed physicists to explain how the Sun and Earth's cores could still be hot after millions of years.

对放射性的理解使物理学家能够解释为什么几百万年以后太阳和地心仍是滚烫的。

In the worst-case scenario, the fuel can spill out of the containment unit and spread toxic radioactivity through the air and water.

最糟的情况是，燃料会从容器单位中洒出，有毒的辐射会进入空气和水中。

Nuclear spectrum measurement is one of the important methods for material composition analysis and radioactivity measurements.

核能谱测量是进行物质成分分析与放射性测量的重要方法之一。

Before the discovery of radioactivity, gravitational attraction and the force of electro-magnetism had been enough to explain everything.

在放射性发现以前，地球引力和电磁力似乎已足以解释每一件事情。

The radioactivity of a sample is defined to be the number of disintegrations per unit time.

样品的放射性定义为每单位时间的蜕变数目。

So far, the plant has already suffered explosions and fires, sending gusts of radioactivity into the atmosphere.

到目前为止，该厂已经遭受爆炸和火灾，发送到大气中放射性的阵风。

In practice it would be possible to measure radioactivity one thousand fold less than this.

在实际上，可能测定的放射性比这个值小一千倍。

The instrument that checks radioactivity levels does not trigger an alarm, so operators still have no reason to suspect a LOCA.

检查辐射水平的设备并未发出警报，因此操作员仍然没想到发生了失水事故。

As a special treatment modality, radionuclide therapy is characterized by radioactivity throughout the treatment procedure.

放射性核素治疗是一种特殊的治疗技术，其整个治疗过程都具有放射性。

Do not collect rainwater for drinking or later garden use during the period of time when active distribution of radioactivity is happening.

尚有辐射期间，不能收集雨水饮用或留作花园之用

They had called the rays from it radioactivity ; they now decided to call the element radium.

他们从放射性特性方面考虑为新元素命名，于是决定称其为“镭”。

marie ' s husband , scientist pierre curie , helped her finish her thesis on radioactivity , which led to a shared nobel prize in physics.

玛丽的丈夫，科学家皮埃尔居里帮助她完成了关于放射性的论文，使她们共同获得了诺贝尔物理学奖。