By combining with the machining needs of parallel machine tools, the working space and the law along with the variation of its autorotation Angle were studied.
结合并联机床的加工要求，研究了工作空间及其随自转角的变化规律。
2
With the principle of work and power, as well as Poynting vector, the reasons for the energy variation in the process of connecting capacitances in parallel are analyzed and discussed.