flat-compound dynamo 平复励发电机

flat compound generator 平复激发电机

flat-compound generator 平复励发电机

flat-compound characteristic 平复励特性曲线

flat-compound excitation 平复励磁

compound flat belt 复合平带

flat compound needle machine 槽针横机

flat profile compound 平坦硫化胶料

compound flat screw die 复合搓丝板