radioactivity
radioactivity
1. In 1898, the Curies obtained a new element, whose radioactivity was several million times stronger than that of uranium.
1898年，居里夫妇获得了一种新元素，它的放射性比铀强几百万倍。
2. With Frederick Soddy he formulated the transformation theory of radioactivity (1902).
1902年与苏第得出放射性转换过程理论的结论。
3. Ye Jida,Kong Lingli,Li Ying,et al.Study of radioactivity effect of mining and utilizing bone coal mine on environment[J].Radiation Protection,2004,24(1):1-23(in Chinese).
[2]叶际达,孔玲莉,李莹,等.五省放射性伴生石煤矿开发和利用对环境影响研究[J].辐射防护,2004,24(1):1-23.
4. Bureau of national aichitecal material .Standands for the control of radioactivity of natural stones(JC518-93). [M]Beijing,China standard publish,1994.
[3]国家建筑材料工业局.天然石材产品放射防护分类控制标准（JC518-93）.见：中华人民共和国建材行业标准.[M]北京：中国标准出版社,1994.
5. Radioactivity tantalum, rely on strong ray to kill cancer cell.
“镭”是什么东西？什么性状的？可以治疗癌症吗？
6. Several chemical elements decay with age, producing radioactivity in the process.
一些化学成分随着时间能量消减，在这一过程中产生了放射性物质。
7. A damaged reactor leaking radioactivity into the atmosphere.
一座损坏的反应堆向大气中泄露出发射性物质
8. 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。
9. Radioactivity refers to the phenomenon of emitting ionizing radiation when a radionuclide spontaneously disintegrates.
二放射性：指核种自发衰变时释出游离辐射之现象。
10. Cloud chambers are used for studying radioactivity.
云室是用于研究放射活动的。
11. What is radioactivity ?
什么是放射性呢?
12. Viewing the subject from this angle, it can be said that the task of isolating radium is the corner-stone of the edifice of the science of radioactivity.
从这一角度来看这个问题，可以说分离镭的工作是放射性学科这一大厦的基石。
13. 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”。
14. When due allowance was made for habitat differences, they found that species which relied on a class of chemicals called carotenoids to tint their feathers fared worse when there was more radioactivity around.
他们发现：当栖息地间的辐射量不同，且周边辐射严重时，依赖于一种叫类胡萝卜素的化学品来给它们羽毛上色的鸟的情况比较糟糕。
15. They are steadily finding new means of protecting themselves and others from radioactivity.
他们正在不断地寻找新的方法来保护自己和他人免受放射性伤害。
16. They argued that only a negligible rise in atmosphere radioactivity resulted from the test.
他们辩解说,由这次试验所造成的大气层放射活动的增加是微不足道的。
17. He says, product sale also just should be held detect normally orgnaization issue, the radioactivity that accords with national regulation examines report.
他说，产品销售方也应持正规检测机构出具的，符合国家规定的放射性检验报告。
18. 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。
19. Russian-born American nuclear physicist known for his work on radioactivity and genetic information as well as his books popularizing theories of physics.
伽莫夫，乔治1904－1968俄国裔的美国核物理学家，因在射线遗传信息方面的研究和有关普及物理理论的书籍而闻名于世
20. But not panicky also, just be to want to do here quite just, radiate of a computer brings your influence, be not worth the radioactivity influence of a brick in your bedroom wall.
但也不要恐慌，这里只不过是想做个比较而已，一台电脑辐射带给你的影响，不足您卧室墙壁里一块砖头的放射性影响。
21. Endocytosis of LDL and Radioactivity Techniques.
低密度胆固醇之胞饮作用与放射性技术。
22. You have to be cautious when you use these radioactivity material.
你们使用这些放射性物质的时候一定要非常小心。
23. If join siliceous zirconium excessive, the radioactivity of ceramic tile can exceed bid.
假如加入的硅酸锆过量，瓷砖的放射性就会超标。
24. If radioactivity index is exorbitant, must change instantly stone material.
假如放射性指标过高，则必须立即更换石材。
25. Radioactivity such as that of strontium 90 causes health problems in people even at low levels.
像银－90的放射性，哪怕是较低水平的放射性，都会对人体的健康造成危害。
26. The radioactivity ofthe reactor vessel is 24 Ci for ~(60)Co and 6.9 Ci for ~(66)Zn.
内壳的放射性强度:~(60)Co 为24居里,~(65)Zn 为6.9居里。
27. After several days, the enclosed atmosphere was tested for radioactivity, which might indicate that the nutrients had somehow been metabolized.
几天之后，测验封闭在里面的空气是否有放射性。如果有的话，说明营养物质多少已经产生代谢变化。
28. Using OCM to measure the tiny mass has a very high precision and stability, the equipment’s operation is very easy,and has no radioactivity pollution.
利用压电石英晶体测量微质量物质精度高，稳定性好，设备操作简单，容易携带，而且无放射污染。
29. BY USING MODERN TECHNOLOGY, I FEEL WE ARE HURTING THIS VIBRATING, JUICY EARTH WITH THE DEAD GARBAGE OF PLASTIC, RADIOACTIVITY, BAD AIR AND SO ON. PLEASE WOULD YOU COMMENT.
利用现代科技,我感觉我们正在用塑料垃圾、放射性、污浊空气等等破坏这个充满生命颤动和汁液的地球。请您对此评论。
30. By using modern technology, I feel we are hurting this vibrating,juicy earth with the dead garbage of plastic, radioactivity, badair and so on. Please would you comment.
利用现代科技，我感觉我们正在用塑料垃圾、放射性、污浊空气等等破坏这个充满生命颤动和汁液的地球。请您对此评论。
31. By 2008,the noise in the constructed urban areas should basically reach the national standard,the electric-magnetic radiation and radioactivity should be maintained complying with national standards.
到2008年城市建成区噪声基本达到国家标准。电磁辐射和放射性环境继续符合国家标准。
32. The site was found to be contaminated by radioactivity.
发现此地受放射线污染。
33. Additional, marble, granitic, brick, cement, because producing area is different, have the radioactivity of different level.
另外，大理石、花岗石、砖头、水泥等，由于产地不同，具有不同程度的放射性。
34. When the bubble expands, however, and some of the water evaporates again, some of the radioactivity may return to the bubble.
可是当汽泡膨胀和一部分水又重新汽化时，某些放射性又回到汽泡中去。
35. In this circumstance, the sand filter system would filterminimize the radioactivity released to the environment.
同时,砂堆过滤器亦会过滤和减少外泄物质的放射性。
36. Alas in places caught in extreme radioactivity such as New Orleans, there are few ascending enough to release any karma at all.
唉，在一些地方例如新奥尔良陷入了极度的辐射，那里根本没什么提升足以释放任何业力。
37. Radioactivity provides an extremely sensitive method of analysis since disintegration of individual nuclei are monitored.
因此放射现象可以监视每一个核的裂变，因此放射现象提供了一个极灵敏的分析方法。
38. The artificial creation of radio-elements opens a new field to the science of radioactivity and so provides an extension of the work of Pierre and Marie Curie.
因此，人工制造放射性元素开辟了放射性科学的新天地，使得皮埃尔·居里和玛丽·居里的研究成果得到进一步发展。
39. The level of radioactivity in the soil was found to be above recommended limits.
土壤的辐射水平被发现超过规定的限度。
40. At Fernald School, MIT gave radioactive substances to children by putting it in their food.No risks of radioactivity were mentioned in the consent form signed by the parents.
在Fernald学校，麻省理工大学通过在儿童的食物里放入辐射物质，将辐射物质给了儿童，无辐射危险在家长签署同意书中被提到的。
41. In reading a picture of asymmetric testicular FDG activity, the possibility of unilateral atrophic testis that absorbs less radioactivity should be kept in mind.
在判读睪丸不对称之氟-18-去氧葡萄糖摄取活性时，须注意单侧萎缩睪丸导致摄取减少的可能性。
42. 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。
43. 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。
44. The trace method of multi-nuclides. was applied to the experiment and S-80 type analysis with Ge(Li) detector was used for the measurement of radioactivity.
在实验中采用多核素示踪法并用S-80智能多道分析器和Ge(Li)探头测量放射性。
45. Sensitivity to radioactivity of human, dosage and radioactivity conditions are main factors to damage man during the course of radioactive well survey in oil field.
在油田放射性测井过程中，对人体产生损伤的决定因素是人体对辐射的敏感程度，所受辐射剂量的大小及受照条件。
46. 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。
47. Terrestrial radioactivity typically outpowers the putative neutralino signal by a factor of 106.
地球上放射性的典型强度，是假设的中性伴子讯号的106倍以上；
48. On the whole, cities enjoyed good acoustic environment and radioactivity pollution maintained at natural background level. The total amount of arable land was on decline.
城市声环境质量较好,辐射环境质量基本维持在天然本底水平。
49. Most people at some time or other have X-rays for dental or medical reasons and small amounts of radioactivity are still present from fallout from nuclear weapons tests.
大部分人总有时需要接受牙医或医学性的X光检查,核武测试的微尘亦带有少量的放射性物质。
50. Natural radioactivity contains a store of valuable information.
天然放射性包含着许多有价值的信息。
51. Plants and animals will be protected if the amount of radioactivity released into an area is low enough to be safe for human beings.
如果释放到一个区域的放射性物质的量低至对人体不构成损害，那么植物体和动物也不会受到影响。
52. As a technique without radioactivity and noninvasive, quantitative ultrasonic densitometry is suitable in bone density measurement for pregnant women.
定量骨超声作为一种无福射、无创伤的骨骼强度测定技术，适用于妊娠妇女骨骼强度监测。
53. Utilized in pretargeting RIT, both Av and SA-gal could make the blood level of radioactivity decrease quickly and considerably improves tumor T/NT ratios.
实验结果提示 ,SA -gal和Av作为清除剂在肿瘤预定位放免治疗中能有效地加快血中标记单抗的清除 ,使肿瘤靶 非靶比值得以明显地提高 ;
54. Under the optimum conditions, the composite nano-particles of (110Agm) Ag/TiO2 were synthesized with radiochemical yield of 93.6% and specific volume radioactivity of 0.6MBq/mL.
实验结果表明在最佳反应条件下,用聚酰胺薄膜层析法测得约有93.6%的110Agm沉积在TiO2纳米微粒表面,放射性浓度为0.6MBq/mL;
55. Compared with natural stones, Fuyunstone has lower radioactivity and can be produced in large quantity with even color.
富云岗石大面积无色差、无裂纹、放射性极低、易于大批量供货、施工全程保护(产品出厂前表面均贴有保护膜)。
56. The toxicant that contains actually to furniture uses material, coating pledges or the control index such as radioactivity offers the regulation such as the specification.
对家具所用材料、涂料实际含有的有毒物质或放射性等控制指标给予说明等规定。
57. 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几百万年以后太阳和地心如何仍是滚烫的。
58. A unit of radioactivity, equal to the amount of a radioactive isotope that decays at the rate of3.7?010 disintegrations per second.
居里放射性强度单位，相当于一秒钟内发生3。7?010次裂变
59. The heat production in rocks due to radioactivity is highest in the acid rocks and lowest in the ultra-basic rocks.
岩石的放射作用热产率以酸性岩类最高，超基性岩类最低。
60. It was shown that the radioactivity detected in DNA of EAC cells was about 68% of total amount of 3H-pseudolycorine in the cancer cells.
已证明癌细胞中测得~3H-伪石蒜碱的量68%在其细胞DNA中。
61. In PD SPECT image, the radioactivity uptake of BG had decreased in accordance with the disease severity.
帕金森病病人，根据病情、病程不同，基底节放射性摄取有不同程度减少。
62. Building materials results from it is inevitable that the soil in nature, rock contains certain natural radioactivity material among them, also be insufficient for what blame.
建材源于自然界中的土壤、岩石其中含有一定的天然放射性物质是必然的，也是不足为怪的。
63. Will alert to the presence of Radioactivity in packages.
当包裹中有放射性存在时发出警报。
64. It spewed radioactivity across large parts of Russia and Europe.
当时它所释放出的放射性物质散布至大部份俄罗斯和欧洲。
65. To produce(radioactivity,for example)artificially by bombardment of a substance with neutrons,gamma rays,and other particles.
感生通过用中子流、r射线线和其它一些粒子流射向一个物质而产生(例如，放射现象)
66. To produce(radioactivity, for example) artificially by bombardment of a substance with neutrons, gamma rays, and other particles.
感生通过用中子流、r射线线和其它一些粒子流射向一个物质而产生（例如，放射现象）
67. To produce(radioactivity,for example) artificially by bombardment of a substance with neutrons,gamma rays,and other particles.
感生通过用中子流、r射线线和其它一些粒子流射向一个物质而产生（例如，放射现象）。
68. We are also indebted to Pierre Curie for basic research in the field of radioactivity, which has been carried out either alone, in collaboration with his pupils.
我们也非常感谢皮埃尔·居里在放射性领域所做的基本研究，无论这些研究是他独立完成的还是与学生合作完成的。
69. 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。
70. We have shown that it is possible to create a radioactivity characterized by the emission of positive or negative electrons in boron and magnesium, by bombardment with alpha rays.
我们已经展示了人工放射现象的可能性，这种放射现象的特征是用以射线轰击用咄硼和镁中的正电子或负电子。
71. To expose to or permeate with radioactivity.
我们必须学会控制放射能。
72. This conviction was based solely on the atomic nature of radioactivity.
我们的这种信念完全依赖于原子的放射性属性。
73. I would like here to recall the extraordinary development of radioactivity, this new science which had its origin, less then forty years ago in the work of Henri Becquerel and of Pierre and Marie Curie.
我想在这里回顾一下放射性研究的非同一般的发展情况；这一新兴学科起源于三十多年前贝克勒尔和居里夫妇的研究工作。
74. What what mirror is the radioactivity intensity of material.
所反映的是材料的放射性强度。
75. All the elements emitting such radiation I have termed radioactive, and the new property of matter revealed in this emission has thus received the name radioactivity.
所有这些元素都放出一种射线，我称之为放射性射线，这一在放射性研究过程中新发现的物质属性也因此获得了放射性这一名称。
76. Excretion: the use of oral and intravenous 14 C-calibration given tacrolimus, most of the radioactivity was excluded from the feces.
排泄 ：利用口服及静注给予 14 C- 标定他克莫司之后，大部分的放射活性是由粪便中排除掉。
77. It discusses the relation between radioactivity abnormity and reservoirs,and summarizes the rule of abnormity above reservoirs.
探讨了放射性异常与油气藏的关系;
78. Abstract The treatment method of radioactivity liquid waste in decommissioning of ura-nium production and research facilities was analyzed by ion froth flotation.
摘要 运用离子浮选法处理铀同位素生产和研究设施退役过程中产生的化学清洗剂废水不受有机物的影响 ,该方法适宜对成分复杂的放射性废水进行处理 ,并可回收铀。
79. The principle of proton radioactivity is introduced. The present status of experimental studies on proton radioactivity is reviewed.
摘要介绍了质子衰变的基本原理，综述了质子衰变实验研究的现状。
80. The Institute of Radium of National Academy of Peiping was the first institute in the field of radioactivity in China.
摘要北平研究院镭学研究所是中国第一个研究放射性物质的研究机构，1948年被改组为中国第一个原子科学研究所。
