oblique plane短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 斜面 This paper analysed the theoretical shortcoming of the conventional method solving the oblique plane- block problem. The applicable range of Coulomb's friction Law in the fundamental problem are given. 本文分析了斜面-滑块问题现有解答的理论缺陷，得出了库仑静滑动摩擦定律在这一基本问题中的适用范围。 cnki