blast hole testing drill

同义词释义

1)blast hole testing drill,牙轮钻头试验钻机2)rock bit testing rig,牙轮钻头试验钻机3)Cone,牙轮4)abnormity cone,异形牙轮5)auger,牙轮钻6)rotary drill,牙轮钻机7)roller bit,牙轮钻头8)rock bit,牙轮钻头9)cone and jaw,牙轮牙爪10)Palm of Roller Bits,牙轮牙掌