parallel machine tools 基本例句 并联机床 A novel parallel manipulator for laser cutting is presented.提出了一种新型激光切割并联机床。 The results of analysis show that the workspace ofparallel machine toolsis enveloped by many surface patches.分析计算结果表明,并联机床的工作空间是由多张曲面片包围而成的闭包。