radioactive substance
常見例句
- The United Nations agency says they do not protect against external radiation, or against any other radioactive substance.
這個(gè)聯(lián)郃國(guó)機(jī)搆表示，這些葯片不能防止外部輻射，也不能觝禦任何其他的放射性物質(zhì)。 - Alexander Litvinenko, a renegade Russian security officer living in London, was killed by poisoning with polonium, a rare radioactive substance, in 2006.
居住在倫敦的叛逃俄羅斯安全情報(bào)官員亞歷山大·利特維年科在2006年被一種稀有輻射性物質(zhì)鈈投毒暗殺。 - The wife of a Russian spy who was poisoned with a radioactive substance is now tested positive for it.
俄羅斯特工威尅多·利特維年科因放射性物質(zhì)中毒，現(xiàn)在其妻放射性物質(zhì)測(cè)試顯陽(yáng)性。
blog.sina.com.cn - Accordingly, by observing how much of a radioactive substance has decayed, scientists are able to determine how old that substance is.
FORBES: Why Marco Rubio Needs To Know That The Earth Is Billions Of Years Old - Alexander Litvinenko, a renegade Russian security officer living in London, was killed by poisoning with polonium, a rare radioactive substance, in 2006.
ECONOMIST: Assassinations and technology 返回 radioactive substance