技术力学基础 - 2026 进行中

科目: 技术力学基础
级别: VI
类别: 大学生
测试题目: 英语
问题示例: Three coplanar concurrent forces act on a particle. Which condition is sufficient for the particle to remain in equilibrium? The algebraic sum of their magnitudes is zero, The vector sum of the forces is zero, The largest force equals the smallest force, All forces have the same direction