Study on the forging process of double circular-arc helicoid bevel gears .

双圆弧螺旋伞齿轮之锻造制程模拟研究。

Congenital syphilis says the embryo passes syphilis again , it is syphilis helicoid to infect fetal syphilis via placenta .

先天梅毒又称胎传梅毒，乃梅毒螺旋体经胎盘传染给胎儿之梅毒。

Second tip : always calculate the helicoid with an internal diameter a few millimeters larger than the .

提示2:始终以大于需要焊接的螺旋面内部直径进行计算。

The ortho cone helicoid was used interrsect intercept by the ortho cone helicoid and the cylinder .

正圆锥螺旋面是正圆柱螺旋面被同轴正圆锥面截得。

The infection bleeds huang dan is the end helicoid causes by hemorrhagic huang dangou , mainly encroaches upon the young dog .

传染性出血黄疸是由出血性黄疸钩端螺旋体引起的，主要侵犯幼犬。