词汇	dushu
释义	dushu 督俞¹⁰⁰
随便看	rollcerebroside B rollcerebroside E roll chain roll change roll change buggy roll change gear roll change mechanism roll change pit roll changer roll change robot roll change side roll change time roll changing roll changing carriage roll-changing device roll changing gear roll-changing gear roll changing rig roll changing rigs roll changing sledge roll changing sleeve roll changing system Roll channel Roll characteristic roll characteristic parameter