radioactivity
英 [,reɪdɪəʊæk'tɪvɪtɪ]
美[,redɪoæk'tɪvəti]
- n. 放射性；[核] 放射能力；[核] 放射现象
实用场景例句
- The government has been storing radioactive waste at Fernald for 50 years.
- 政府在弗纳德存放放射性废料已达50年之久。
柯林斯高阶英语词典
- It is the product of radioactive decay ( see radioactivity ) and is used in helium dating.
- 氦 是由放射性衰变形成的,可用于氦年代测定法.
期刊摘选
- 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.
辞典例句
- The Geiger counter showed the existence of radioactivity.
- 盖格计算机显示出放射性的存在.
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- This, because of its age, has already lost most of its radioactivity.
- 这些铅因为年代久远, 已失去了它绝大部分的放射性.
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- 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.
辞典例句
- 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.
《简明英汉词典》
- 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.
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- Electricity and radioactivity have little in common and do not resonate.
- 电流与放射性之间几乎没有任何共性,也无法共振.
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- The site was found to be contaminated by radioactivity.
- 发现此地受放射线污染.
《简明英汉词典》
- The radioactivity was being swept upwards by the air current and out into the atmosphere.
- 放射能被气流吹起,进入大气层.
期刊摘选
- 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.
辞典例句
- Radioactivity : Property exhibited by certain types of matter of emitting radiation spontaneously.
- 放射性: 某些类的物质自发发射辐射的特性.
期刊摘选
- Overburden had concealed the radioactivity.
- 覆盖层屏蔽掉了放射性.
辞典例句
- 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.
《简明英汉词典》
- It analyzes data processing method of radioactivity abnormity application effect of reservoir searching with radioactivity method.
- 总结了油气藏上方放射性异常的规律.
期刊摘选
- 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.
辞典例句
- 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.
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- The material is free from radioactivity, nontoxic and harmless.
- 该材料不含任何放射性元素, 无毒、无害、无放射性.
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- Measuring technology of nuclear energy spectrum is the foundation of matter composition and radioactivity nuclear methods.
- 核能谱测量是进行物质成分分析和放射性检测的重要方法之一.
期刊摘选
- 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.
期刊摘选
- 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.
期刊摘选
- 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.
《简明英汉词典》
- The dismantling of a nuclear reprocessing plant caused a leak of radioactivity yesterday.
- 昨天拆除核后处理工厂引起了放射物泄漏.
《简明英汉词典》
- 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.
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- METHODS: Using tissue culture and radioactivity analysis methods.
- 方法: 采用组织培养及放射免疫分析方法测定各指标.
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- 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 )
期刊摘选
- People had no idea of radioactivity before Curie discovered radium.
- 直到居里夫人发现镭后,人们才了解放射性.
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