transition-metal elements的用法和樣例：
例句
- A method to calculate new valence electronegativity and the ionicity of chemical bond of the transition metal elements is also presented here.
提出了計算過渡元素新價態電負性和化學鍵的離子性的方法。 - Except for the transitional elements, valency electrons are in the outermost electron shell.
除去過渡元素外，價電子位於最外面的電子層。
