常見(jiàn)例句雙語(yǔ)例句In nature, the element, whose nucleus is unstable and will grows to be nuclear of other element, is called radioactive element.在自然界，凡原子核不穩(wěn)定，過(guò)一些時(shí)間自發(fā)地變成其它元素原子核的元素，稱(chēng)為放射性元素。Radon is a common radioactive element in air, which is strongly harmful to the man's health. Man inhales radon and its daughters mainly from the indoor air.氡是空氣中常見(jiàn)的放射性元素，其對(duì)人體健康有強(qiáng)的危害作用，人體主要從室內(nèi)空氣中吸入氡及其子體。In July 1898, Madame Curie and her husband got a great success that they discovered the radioactive element, polonium, which Marie named after Poland.1898年7月，居里夫人和她的丈夫取得了一項(xiàng)極大的成就-----他們發(fā)現(xiàn)了一種放射性元素，瑪麗以波蘭這一名稱(chēng)的字頭命名它為釙。原聲例句They had been interested in thorium -- a radioactive element that can fuel nuclear reactors but not be processed into weapons.World War Two ended. Enrico Fermi had been the first to use a neutron to produce the radioactive change of one element to another.權(quán)威例句When the Sun becomes more active, this isotope becomes more abundant along with beryllium, another radioactive element.FORBES: Climate Scientists Deepening Skepticism of DemocracyLitvinenko wound up dead in London from poisoning with an exotic, highly radioactive element called Polonium 210 widely believed to have come from Russia.CENTERFORSECURITYPOLICY: Putin's back to the futureIAEA-led team was fanning out in western Georgia in search of the remaining two of a batch of eight abandoned devices containing strontium-90, another radioactive element, which had been used in generators for communication stations.ECONOMIST: How dirty bombs are made, and what they can do 返回 radioactive element