And a new type sphere - conical roller and globoid cam graduator is designed.并在此基础上设计出了一种新型的球锥滚子弧面凸轮转位工作台.Using precisely graduator of cam, hypo - mood position fixing accurately.采用精密凸轮分度器,下模定位精确.A graduator of Shanghai ...
Now and then they heard the roar of a heavy truck.他们不时地听到大卡车的轰鸣声。A roar of approval resounded through the Ukrainian parliament.一片赞成声在乌克兰议会中回响。Local residents saw it plunge towards Earth with a deafening roar.当地的居民看见它伴着一声...