氡和钍射气的子体易被气溶胶吸附.The daughter nuclides of radon and thoron tend to become attached.锕射气氡的一种放射性的, 惰性的和气态的同位素, 其半衰期为3.A radioactive, inert, gaseous isotope of radon, with a half - life of 3.92 seconds....
Diplomacy was in his blood: his ancestors had been feudal lords.他天生擅长交际：他的祖先曾是封建领主。The Swedes had sought his freedom through quiet diplomacy.瑞典人通过秘密的外交手段来争取他的自由。Prince Sadruddin lavished praise on Britain's contribu...