pyramid of the first order
基本解释
- 初级棱锥体
英汉例句
- Based on the screw theory, the first-order effect coefficient matrixes of a 3-UPU parallel pyramid mechanism under initial position and movement along X-coordinate axis are established.
采用螺旋理论，首先分别建立了3-UPU 并联角台机构在初始位形下和沿X 轴方向发生移动后的一阶影响系数矩阵。