Warning: file_put_contents(/www/wwwroot/ppbbu/62383.com/cache/d9c27d7ed61153aefa15d0ed85e21156.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/62383.com/index.php on line 55 twist drill grinder例句_twist drill grinder英汉例句_twist drill grinder双解例句_流逝汉英词典
This paper illustrates the principle of the inner cone grinding twist drill and the process of grinding experiments on the tool grinder. 阐述了内锥面法刃磨麻花钻的原理以及在工具磨床上进行磨削工艺试验的方法。