radioactivity
英 [,re?d????k't?v?t?]
美[,red?o?k't?v?ti]
- n. 放射性；[核] 放射能力；[核] 放射現(xiàn)象
實用場景例句
- The government has been storing radioactive waste at Fernald for 50 years.
- 政府在弗納德存放放射性廢料已達(dá)50年之久。
柯林斯高階英語詞典
- It is the product of radioactive decay ( see radioactivity ) and is used in helium dating.
- 氦 是由放射性衰變形成的,可用于氦年代測定法.
期刊摘選
- This example illustrates the great sensitivity of the radioactivity method.
- 這個例子說明了放射性方法很靈敏.
辭典例句
- The Geiger counter showed the existence of radioactivity.
- 蓋格計算機(jī)顯示出放射性的存在.
期刊摘選
- This, because of its age, has already lost most of its radioactivity.
- 這些鉛因為年代久遠(yuǎn), 已失去了它絕大部分的放射性.
期刊摘選
- In practice it would be possible to measure radioactivity one thousand fold less than this.
- 在實際上,可能測定的放射性比這個值小一千倍.
辭典例句
- The soil contains 30 times the acceptable level of radioactivity.
- 這片土壤受到了高于標(biāo)準(zhǔn)30倍的輻射.
《簡明英漢詞典》
- 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), 其整個治療過程都具有放射性.
期刊摘選
- Electricity and radioactivity have little in common and do not resonate.
- 電流與放射性之間幾乎沒有任何共性,也無法共振.
期刊摘選
- The site was found to be contaminated by radioactivity.
- 發(fā)現(xiàn)此地受放射線污染.
《簡明英漢詞典》
- The radioactivity was being swept upwards by the air current and out into the atmosphere.
- 放射能被氣流吹起,進(jìn)入大氣層.
期刊摘選
- A metal called uranium gave off a kind of radiation, which Marie Curie later called radioactivity.
- 一種叫鈾的金屬發(fā)出一種射線, 后來瑪麗·居里把這種現(xiàn)象稱為放射性.
辭典例句
- Radioactivity : Property exhibited by certain types of matter of emitting radiation spontaneously.
- 放射性: 某些類的物質(zhì)自發(fā)發(fā)射輻射的特性.
期刊摘選
- Overburden had concealed the radioactivity.
- 覆蓋層屏蔽掉了放射性.
辭典例句
- They argued that only a negligible rise in atmosphere radioactivity resulted from the test.
- 他們辯解說,由這次試驗所造成的大氣層放射活動的增加是微不足道的.
《簡明英漢詞典》
- It analyzes data processing method of radioactivity abnormity application effect of reservoir searching with radioactivity method.
- 總結(jié)了油氣藏上方放射性異常的規(guī)律.
期刊摘選
- The atomic bomb is characterized by the grave injuries caused by radioactivity.
- 原子彈具有由輻射引起嚴(yán)重?fù)p傷的特點(diǎn).
辭典例句
- Nevertheless, radioactivity remained a property exclusively associated with some thirty substances existing naturally.
- 然而, 放射性一直是大約三十種天然物質(zhì)特有的性質(zhì).
期刊摘選
- The material is free from radioactivity, nontoxic and harmless.
- 該材料不含任何放射性元素, 無毒、無害、無放射性.
期刊摘選
- Measuring technology of nuclear energy spectrum is the foundation of matter composition and radioactivity nuclear methods.
- 核能譜測量是進(jìn)行物質(zhì)成分分析和放射性檢測的重要方法之一.
期刊摘選
- Radioactivity such as that of strontium 90 causes health problems in people even at low levels.
- 像銀-90的放射性,哪怕是較低水平的放射性,都會對人體的健康造成危害.
期刊摘選
- The ability of radiation to induce radioactivity in food is related to its energy.
- 輻照所引起的使食物具有放射性的能力是與輻照的能量有關(guān)的.
期刊摘選
- The level of radioactivity in the soil was found to be above recommended limits.
- 土壤的輻射水平被發(fā)現(xiàn)超過規(guī)定的限度.
《簡明英漢詞典》
- The dismantling of a nuclear reprocessing plant caused a leak of radioactivity yesterday.
- 昨天拆除核后處理工廠引起了放射物泄漏.
《簡明英漢詞典》
- Conclusion It was succeed keys to treat and nurse of esophagitis of radioactivity.
- 結(jié)論放射性食管炎的治療和護(hù)理,是放療成敗的關(guān)鍵.
期刊摘選
- METHODS: Using tissue culture and radioactivity analysis methods.
- 方法: 采用組織培養(yǎng)及放射免疫分析方法測定各指標(biāo).
期刊摘選
- To produce ( radioactivity, for example ) artificially by bombardment of a substance with neutrons, gamma rays, and other particles.
- 感生通過用中子流 、 r射線線和其它一些粒子流射向一個物質(zhì)而產(chǎn)生 ( 例如,放射現(xiàn)象 )
期刊摘選
- People had no idea of radioactivity before Curie discovered radium.
- 直到居里夫人發(fā)現(xiàn)鐳后,人們才了解放射性.
期刊摘選