建立了砂轮的球基渐开螺旋面方程和分度球面螺旋线方程,给出螺旋运动参数、螺旋线导程.The mechanism of grinding internal gear of spherical worm emery - wheel is researched.正圆锥螺旋面是正圆柱螺旋面被同轴正圆锥面截得.The ortho cone helicoid was used interrsect intercept by the ortho con...
切勿讲不雅的故事.Never tell stories that are not decent , ie that are obscene.用餐时摆弄刀叉玩儿是不雅的.It's bad manners to fidget about at the table.他的不雅的吃相使她很尴尬.His bad table manners embarrassed her....
He had been replying for some 40 minutes already and was still in full flow.他已经就就此问题回答了 40 分钟左右，仍然不见有停下来的意思。This system has uniform call flow, exoteric system interface and uniform protocol standard.该系统具有统一的呼叫流程, 开放的系统接口...