Lasers promise to change this by making isotope separation easier, and cheaper.激光可以改变这种局面,从而使同位素分离变得比较容易 、 比较廉价一些.This indium isotope was created at the same time as the earth.这种铟同位素与地球产生在同一时代.The isotope ratio is direct...
A person retains a domicile until it is abandoned.个人保留住所直到其更换。I thought it better to change my domicile for the present.我想目前最好是迁居.Domicile is distinct from nationality.住所与国籍不同....