同义词
1)planetary hub,行星齿轮毂2)double planetary torque hub,二级行星齿轮扭力轮毂3)planetary gear reducer hub,行星齿轮减速器毂盘4)double planetary torque hub component,二级行星齿轮扭力轮毂部件5)differential planetary torque hub,差速器行星齿轮扭力毂套6)differential planetary torque hub component,差速器行星齿轮扭力毂套部件
