The dipole does not radiate energy in the direction of its axis.偶极子在它的轴的方向上不发射能量.Only magnetic dipole and higher multipole configuratons occur in nature.自然界中只能出现磁偶极子以及磁多极子的形式.We now show how to calculate molecular dipole...
因放射物泄露而引起的运输事故可能会发生.Transportation accidents resulting in radiation releases could occur, as could thefts by terrorists.什么放射物会让人得白血病?What can radiative content let does the person get leukaemia?更多的放射物和宇宙射线也将给宇航员带来风险.More...