mechanic structure 基本例句 机械结构 This MMB has a simple structure, consists of several mechanical parts and four PMs.这种微磁悬浮轴承机械结构非常简单，由几个机械部件与四块永磁环组成。 The results are useful to the optimization design of CMA mechanical structures.所得结果对测量臂机械结构的优化设计具有一定的意义。