论文部分内容阅读
在初中物理竞赛中,有一类比较压强大小的问题,同学们常常因为物理与数学的知识准备不足而无从下手,但
In the junior high school physics competition, there is a problem of the size of the pressure. The students often do not have the ability to prepare for the lack of knowledge in physics and mathematics, but