As it strengthened the wind was veering southerly.随着风力加强,风向也向南偏转。We set off in a southerly direction.我们向南出发了。travelling in a southerly direction朝南行进...
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....