u神老婆沈洁长什么样:翻译成英语:大、小齿轮模数相同,齿数为两倍关系,在一起构成行星轮系,以实现公转、自转要求。
来源:百度文库 编辑:查人人中国名人网 时间:2024/05/17 05:03:20
Big, the denticle a mold count same alike, the 齿 counts to 200% to relate to, constituting a department together, toing carry out the revolution around sun and rotating the request.