提出了单轴压缩的岩样在受到剪切破坏条件下的全部变形特征，即轴向、侧向、环向、体积应变及峰后泊松比的解析式。
Analytical solutions of axial, lateral, circumferential and volumetric strains, and post-peak Poisson's ratio of rock specimen subjected to shear failure in uniaxial compression are proposed.
电机闭环驱动控制模块控制电机完成避障动作行为，采用速度单环反馈、桥式驱动、PWM调速。
The things about it are as follow: velocity feedback, H-bridge drive and speed control system using PWM technique.
电机闭环驱动控制模块控制电机完成避障动作行为，采用速度单环反馈、桥式驱动、PWM调速。
The things about it are as follow: velocity feedback, H-bridge drive and speed control system using PWM technique.
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