例句與造句

1. The boundary radius of an atom ( ion ) is defined by the classical turning point equation ( ( r ) = - i , where i denotes the first ionization potential of the atom ( ion ) . the boundary radii of atoms and ions of elements from first - to fifth - row in the periodic table are obtained
   對(duì)于中性原子，假設(shè)此時(shí)的能量等于其第一電離能i的負(fù)值，即v （ r ） = - i 。我們定義原子核到r的距離為原子的內(nèi)稟邊界半徑，簡(jiǎn)稱為邊界半徑。
2. It's difficult to find first ionization potential in a sentence. 用first ionization potential造句挺難的