The nominal definition is a important part to the explanation of the word and phrase which is studied not only by lexical semantic and lexicography but also by logic.

语词定义作为语词释义的重要组成部分，不仅是词汇语义学、词典学的研究对象，也是逻辑学研究的对象。

The load transfer of B0+B0-B0+B0 locomotive with different traction schemes was calculated, basing on the definition of nominal and transitional and equivalent traction height.

针对B0+B0-B0+B0轴式八轴机车不同的牵引方案，在定义了名义牵引高、过渡牵引高和等效牵引高的基础上，进行了轴重转移的计算分析。