essential assumption的用法和样例：
例句
- This corresponds to the basic assumption of demand theory that consumers attempt to maximize utility.
这就相当于需求理论中的基本假设是消费者企图功能最大化。 - The basic assumption of Shi's block theory only includes the dip and dip direction of the discontinuous surfaces without their specific locus.
摘要石氏块体理论的基本假设中只考虑结构面的产状，而不考虑它在空间中的具体位置。
