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radioactivity

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radioactivity是什么意思
英式音标:[ˌreɪdɪəʊæk'tɪvətɪ]英式读音
美式音标:[ˌredioækˈtɪvɪti]美式读音
词语分类:,CET4,CET6
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概况:

n. 放射性;[核] 放射能力;[核] 放射现象

词义:

n.

放射(性);辐射能;

英英释义

radioactivity[ ,reidiəuæk'tivəti ]

n.the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

同义词:radiation

用法:

双语例句

用作名词(n.)

Radioactivity is a special quality of radium.
放射性是镭的一种特性。

The soil contains 30 times the acceptable level of radioactivity.
这片土壤受到了高于标准30 倍的辐射。

权威例句

Air chemistry and radioactivity

Air Chemistry And Radioactivity

Air chemistry and radioactivity

Atmospheric Composition. (Book Reviews: Air Chemistry and Radioactivity)

Stratospheric-tropospheric exchange based on radioactivity, ozone and potential vorticity

Fluorographic detection of radioactivity in polyacrylamide gels with the water-soluble fluor, sodium salicylate.

The Preparation of 131I-Labeled Human Growth Hormone of High Specific Radioactivity

THE PREPARATION OF 131I-LABELLED HUMAN GROWTH HORMONE OF HIGH SPECIFIC RADIOACTIVITY

THE PREPARATION OF I-131-LABELLED HUMAN GROWTH HORMONE OF HIGH SPECIFIC RADIOACTIVITY

THE PREPARATION OF ¹³¹I-LABELED HUMAN GROWTH HORMONE OF HIGH SPECIFIC RADIOACTIVITY
同根词:radioisotope,radioimmunoassay,radiography,radiographer,radiochemistry,radiocarbon,radiobiology,radioactive
英语词源:

radioactivity (n.)

1899, from French radioactivité, coined 1898 by the Curies; see radioactive.

造句:

1. This is what people call radioactivity.

这就是人们常说的放射。

danci.911cha.com

2. What is the danger level for humans and radioactivity?

对人类的危险程度和放射性是什么?

article.yeeyan.org

3. Radioactivity is the ejection of particles or radiation from the nucleus.

放射性是原子从核中射出粒子或辐射的现象。

dict.cn

4. Conclusion It was succeed keys to treat and nurse of esophagitis of radioactivity.

结论放射性食管炎的治疗和护理,是放疗成败的关键。

dict.cnki.net

5. This example illustrates the great sensitivity of the radioactivity method.

这个例子说明了放射性方法很灵敏。

www.kuenglish.info

6. Here therefore we have a true radioactivity which is made evident by the emission of positive electrons.

我们因此获得了一种通过排斥正电子表现出来的真正的放射现象。

www.websaru.com

7. However, unlike the simple exponential that describes radioactivity, which has only one variable, a stretched exponential describes a process controlled by several independent factors.

不过,与只有一个变量的放射性简单指数不同的是,延伸型指数函数描述的是被几个独立因素控制的过程。

www.ecocn.org

8. Radioactivity can also be washed into rivers, lakes and the sea where fish and seafood could take up the radionuclides.

放射性也可以被冲入河流、湖泊和海洋,在这些地方鱼类和海产食品可能会吸收放射性核素。

www.fao.org

9. Then you have class three which is a rad system failure where you might have an equipment failure in the radwaste area where you might release some radioactivity.

然后,还有第三种,那是放射性系统失效,在那,可能出现了一个设备的失效,位于放射性废物区域,那里你可能释放出,一些放射线。

open.163.com

10. Nevertheless, radioactivity remained a property exclusively associated with some thirty substances existing naturally.

然而,放射性一直是大约三十种天然物质特有的性质。

www.hotdic.com

11. In fact, it was Curie that coined the term radioactivity, though Henri Becquerel discovered the phenomenon years earlier.

事实上,是居里创造了放射这个术语,尽管贝可勒耳更早发现了这个现象。

danci.911cha.com

12. The ability of radiation to induce radioactivity in food is related to its energy.

辐照所引起的使食物具有放射性的能力是与辐照的能量有关的。

www.dictall.com

13. Radioactivity is characteristic of such elements as uranium and radium.

放射性是诸如铀、镭之类元素所特有的。

www.wnkaoshi.com

14. The survey of natural radionuclide contents in soil in China(1983—1990)is a part of investigation of environmental natural radioactivity level on China.

中国土壤中天然放射性核素含量调查(1983—1990年)是中国环境天然放射性水平调查研究的一部分。

dict.cnki.net

15. 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。

article.yeeyan.org

16. This great mind was on fire for radioactivity.

这位伟大的思想家有着放射性的思想。

www.cnb8.com

17. Now the Japanese are screening all fish products, some of which do indeed have high levels of radioactivity, and health officials there have set a radiation safety limit on seafood consumption.

现在日本正检测所有的鱼类产品,其中的一些确实有较高的放射性。卫生官员已经制定了海洋食品的辐射安全限度。

article.yeeyan.org

18. This paper reports the radioactivity ratios about the untraditional building materials in Anhui Province, at recent years.

本文报道近年来检测的安徽省非传统建筑材料中放射性核素的比活度。

dict.cnki.net

19. If discovered, the heavy particle would definitively show that properties like electromagnetism and radioactivity are really different facets of the same force.

如果发现了,那重粒子将会决定性的展示出像电磁性和放射性的特性们是同一力量中十分不同的方面。

article.yeeyan.org

20. 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。

andromeda.lamost.org

21. 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。

andromeda.lamost.org

22. The atomic bomb is characterized by the grave injuries caused by radioactivity.

原子弹具有由辐射引起严重损伤的特点。

-- 来源 -- 英汉 - 辞典例句

23. Overburden had concealed the radioactivity.

覆盖层屏蔽掉了放射性。

-- 来源 -- 英汉 - 辞典例句

24. This example illustrates the great sensitivity of the radioactivity method.

这个例子说明了放射性方法很灵敏。

-- 来源 -- 英汉 - 辞典例句

25. Radioactivity is a special quality of radium.

放射性是镭的一种特性。

-- 来源 -- 英汉 - 辞典例句

26. There was in nature another element which sent out radioactivity.

在自然界里存在着另一种具有放射性的元素。

-- 来源 -- 英汉 - 辞典例句

27. Some rare metals have radioactivity.

某些稀有金属具有放射性。

-- 来源 -- 英汉 - 辞典例句

28. Natural radioactivity contains a store of valuable information.

天然放射性包含着许多有价值的信息。

-- 来源 -- 英汉 - 辞典例句

29. At the surface, radioactivity of the conglomerates is locally as high as 30 X background.

在地表,砾岩的局部地段的放射性高达30倍本底值。

-- 来源 -- 英汉 - 辞典例句

30. Radioactivity is found on both sides of the failure plane in all cases.

破断面的任何一侧都发现有放射性。

-- 来源 -- 英汉 - 辞典例句

31. A metal called uranium gave off a kind of radiation, which Marie Curie later called radioactivity.

一种叫铀的金属发出一种射线,后来玛丽·居里把这种现象称为放射性。

-- 来源 -- 英汉 - 辞典例句

radioactivity

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