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。