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50年之久。
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, 已失去了它絕大部分的放射性.
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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準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重損傷的特點.
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.
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Measuring technology of nuclear energy spectrum is the foundation of matter composition and radioactivity nuclear methods.
核能譜測量是進行物質(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.
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
Frederic became one of her assistants, and Irene taught him the techniques required to work with radioactivity.
2017年12月四級真題（第一套）聽力 Section C