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- The Geiger counter registered a dangerous level of radioactivity. 蓋革計數器顯示出放射性危險程度。
- People had no idea of radioactivity before Curie discovered redium. 直到居里夫人發(fā)現鐳后,人們才了解放射性。
- The study of radioactivity began as a piece of pure research. 放射性研究開(kāi)始時(shí)是一項純理論研究。
- The Geiger counter indicated the existence of radioactivity. 蓋戈計算器指示放射性的存在
- The Geiger counter showed the existence of radioactivity. 蓋格計算機顯示出放射性的存在。
- This device indicates the existence of radioactivity. 這個(gè)設備說(shuō)明了放射的產(chǎn)生過(guò)程。
- Deadly weapons; a deadly spill of radioactive waste products. 致命的武器; 導致死亡的核輻射廢物的傾倒
- A unit of radioactivity equal to one thousandth(10-3) of a curie. 毫居里放射單位，等于千分之一（10－3）居里
- This conviction was based solely on the atomic nature of radioactivity. 我們的這種信念完全依賴(lài)于原子的放射性屬性。
- A unit of radioactivity equal to one thousandth(10 - 3)of a curie. 毫居里放射單位，等于千分之一(10－3)居里
- People had no idea of radioactivity before Curie discovered radium. 直到居里夫人發(fā)現鐳后;人們才了解了放射性.
- 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。
- The chemistry of radioactive materials. 放射化學(xué)研究放射性物質(zhì)的化學(xué)
- Will alert to the presence of Radioactivity in packages. 當包裹中有放射性存在時(shí)發(fā)出警報。
- From that time onward numerous scientists devoted themselves to the study of radioactivity. 自那時(shí)起，無(wú)數的科學(xué)家致力于放射性研究。
- The dumping of radioactive waste into the sea was banned in 1970. 禁止傾倒放射性廢料入海的禁令在1971年頒布。
- Ernest Rutherford and Frederick Soddy were working out the nature of radioactivity. 是盧琴福和索迪揭示了放射性的奧秘，發(fā)表了元素的嬗變理論。
- How can I persuade you of my sincerity? 我如何能夠讓你相信我的誠意？
- People didn't have any idea of radioactivity until Madame Curie discovered uranium. 直到居里夫人發(fā)現鈾，人們才知道放射線(xiàn)。
- There is a vein of melancholy in his character. 他的性格中有少許憂(yōu)郁的氣質(zhì)。
