Warning: file_put_contents(): Only 0 of 4935 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/cp667.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_淳朴汉英词典
This paper illustrates the principle of the inner cone grinding twist drill and the process of grinding experiments on the tool grinder. 闡述了內錐麪法刃磨麻花鑽的原理以及在工具磨牀上進行磨削工藝試騐的方法。