radioactivity

美 [?re?dio?æk?t?v?ti] 　英 [?re?di??æk?t?v?ti]

• n.放射性；放射(現(xiàn)象)
• 網(wǎng)絡(luò)放射現(xiàn)象；放射性活度；放射能

同義詞

英漢解釋

英英解釋

例句

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

為了探測(cè)質(zhì)子衰變放射性的假想形式，人們修建了巨大的探測(cè)器，但這些探測(cè)器從沒(méi)發(fā)現(xiàn)這種東西。

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

于是瑪麗推斷出，在瀝青鈾礦中可能還有其他具有放射性的物質(zhì)。

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

雖然它更有可能是這些事件是由于宇宙射線或放射性物質(zhì)，其結(jié)果與一個(gè)懦夫檢測(cè)一致。

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

某些核輻射可能通過(guò)空氣傳播到美國(guó)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.

人們對(duì)銀河那邊存在的宇宙究竟有多大一無(wú)所知，輻射能、相對(duì)論和量子論更是想都不敢想的問(wèn)題。

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

美國(guó)海軍說(shuō)，舊金山號(hào)的核反應(yīng)堆沒(méi)有損傷，沒(méi)有放射性物質(zhì)泄漏，潛艇艦體也完好無(wú)損。

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

通過(guò)放射能可以揭露產(chǎn)品的來(lái)源是天然的還是人造合成的。

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

會(huì)有環(huán)境破壞嗎？比如核輻射，生化災(zāi)難之類(lèi)的。

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

對(duì)放射性的理解使物理學(xué)家能夠解釋為什么幾百萬(wàn)年以后太陽(yáng)和地心仍是滾燙的。

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

最糟的情況是，燃料會(huì)從容器單位中灑出，有毒的輻射會(huì)進(jìn)入空氣和水中。

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

核能譜測(cè)量是進(jìn)行物質(zhì)成分分析與放射性測(cè)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.

在放射性發(fā)現(xiàn)以前，地球引力和電磁力似乎已足以解釋每一件事情。

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

樣品的放射性定義為每單位時(shí)間的蛻變數(shù)目。

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

到目前為止，該廠已經(jīng)遭受爆炸和火災(zāi)，發(fā)送到大氣中放射性的陣風(fēng)。

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

在實(shí)際上，可能測(cè)定的放射性比這個(gè)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.

檢查輻射水平的設(shè)備并未發(fā)出警報(bào)，因此操作員仍然沒(méi)想到發(fā)生了失水事故。

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

放射性核素治療是一種特殊的治療技術(shù)，其整個(gè)治療過(guò)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.

尚有輻射期間，不能收集雨水飲用或留作花園之用

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

他們從放射性特性方面考慮為新元素命名，于是決定稱(chēng)其為“鐳”。

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

瑪麗的丈夫，科學(xué)家皮埃爾居里幫助她完成了關(guān)于放射性的論文，使她們共同獲得了諾貝爾物理學(xué)獎(jiǎng)。

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

樣品的放射性定義為每單位時(shí)間的蛻變數(shù)目。

When the bubble expands, however, and some of the water evaporates again, some of the radioactivity may return to the bubble.

可是當(dāng)汽泡膨脹和一部分水又重新汽化時(shí)，某些放射性又回到汽泡中去。

The depthmen will measure cosmic ray penetration of the sea, radioactivity, and the age of the water in the abyss.

深入海底的人將在深海測(cè)量宇宙射線對(duì)海水的穿透力、放射性活動(dòng)，以及海水的年齡。

For people who survive the initial blast, the main advice is to fight the impulse to run and instead seek shelter from lethal radioactivity.

對(duì)于核彈初爆后幸存的人們而言，主要的建議是抑制亂跑的沖動(dòng)，尋找躲避致命輻射的避難所。

Officials at Tepco said they were exploring ways to put pumps at the site despite the water's radioactivity.

東京電力的高管說(shuō)，他們正在探討如何在高輻射積水的情況下，在現(xiàn)場(chǎng)安放水泵。

Since the storage pools are not located within containment, a catastrophic radioactivity release to the environment could occur.

既然貯存池不再正常工作，一場(chǎng)釋放到環(huán)境中的放射性災(zāi)難就可能發(fā)生。

But a shortage of research labs capable of conducting accurate radioactivity tests stalled the process.

但由于缺少能夠執(zhí)行精確放射性檢驗(yàn)的研究實(shí)驗(yàn)室，這個(gè)過(guò)程遇到阻礙。

The cranes will also employ radioactivity monitors as well as cameras to help remotely operate the tools.

這些起重機(jī)還裝備了放射性現(xiàn)象監(jiān)視器和攝像頭來(lái)使工作人員能夠遠(yuǎn)程控制這些工具。

This conviction was based solely on the atomic nature of radioactivity .

我們的這種信念完全依賴于原子的放射性屬性。

Radioactivity refers to the phenomenon of emitting ionizing radiation when a radionuclide spontaneously disintegrates .

指核種自發(fā)衰變時(shí)釋出游離輻射之現(xiàn)象。

the fate of the radioactivity within a living organism, one can learn the normal pathway of this carbon compound in that organism.

通過(guò)追蹤放射性在活體內(nèi)的去向，人們能得知這種碳化合物在體內(nèi)正常的途徑。

So if these radioactive materials are released into the environment yes radioactivity was released but no it is not dangerous at all.

所以如果這些放射性物質(zhì)釋放到環(huán)境中，是的，放射性被釋放，但是不，他們完全沒(méi)有停險(xiǎn)。

That was based on the steam coming out of the reactors and on the lower levels of radioactivity around the plant.

這是根據(jù)反應(yīng)堆散發(fā)出的蒸汽，以及核電站周?chē)?/c>的輻射水平下降得出的結(jié)論。

The Beijing center is among WMO's eight worldwide centers which predict the long-range movement of air-borne radioactivity.

世界氣象組織在全球設(shè)立了八個(gè)監(jiān)測(cè)大氣輻射污染長(zhǎng)期運(yùn)動(dòng)的區(qū)域氣象中心，北京區(qū)域專(zhuān)業(yè)氣象中心是其中之一。

South Asia, seismic tsunami caused by the radioactivity pollution of Japan, the horror of that self inspire book is popular.

南亞地震海嘯，由此引發(fā)的放射能污染的恐怖經(jīng)歷的日本，自我啟發(fā)書(shū)很受歡迎。

The heat production in rocks due to radioactivity is highest in the acid rocks and lowest in the ultra- basic rocks .

巖石的放射作用熱產(chǎn)率以酸性巖類(lèi)最高，超基性巖類(lèi)最低。

She measured the amount of radioactivity, an atomic property, and felt that the radioactivity was proportional to the amount of the element.

她測(cè)量了這兩個(gè)元素放射性的總量和原子性質(zhì)，感覺(jué)到物質(zhì)的放射性是同放射性元素的總量成比例的。

See nuclear fission; nuclear fusion. The splitting of heavy atomic nuclei to release energy in the form of heat and radioactivity.

重原子核分裂，能量以熱能和放射能的形式釋放出來(lái)。

A meltdown occurs when nuclear fuel rods cannot be cooled, thus melting the reactor core and causing a release of radioactivity.

如果核燃料管無(wú)法降溫，就會(huì)發(fā)生熔毀，到時(shí)反應(yīng)器的內(nèi)核也會(huì)熔化，從而引起核泄漏。

The slab stone material is easy to process, and the mosaic has no radioactivity, round, plump edges, and low cost.

板巖馬賽克無(wú)有害放射性，加工成的馬賽克塊棱角圓潤(rùn)飽滿、柔而不滑，有著材質(zhì)軟，易加工、易施工，成本低的特點(diǎn)。

Results: Through correlation analysis, radioactivity counts and glucose content in the bronchial secretion had no correlation.

結(jié)果：支氣管分泌物的糖含量與放射性計(jì)數(shù)不相關(guān)。

Electricity and radioactivity are foreign energy movement that came to be due to human manipulations over earth.

電流和放射性是外來(lái)的能量流運(yùn)動(dòng)，是由于人類(lèi)對(duì)地球的操控而出現(xiàn)。