势差

zī yuán de kuò zhāng dǎo zhì le zhī shi shì chā yǐn fā le zhī shi xué xí

资源的扩张导致了知识势差，引发了知识学习。

The expansion of resources leads the potential difference of knowledge, causing the knowledge learning.

jiē chù shì chā fǎ

接触势差法

contact potential difference method