bit uniform wear 钻头正常磨损
bit gage wear 钻头直径磨损
bit gauge wear 钻头直径磨小
bit excessive wear 钻头过度磨损
bit bearing wear equation 轴承磨速模式
bit t wear 钻头磨损
The results show that: the whole bit wear process can be divided into three phases;
发现钻头的整个磨损过程可分为3个阶段；
Properly press the packing gland in case of a little bit wear and replace it in case of too much wear.
填料磨损时可适当压紧填料压盖，若磨损过多应予更换。
Field tests also show that the self-resonating cavitation nozzle is highly effective in reducing bit wear, increasing drilling footage and drilling speed.
现场试验同样证实设计的自振空化射流喷嘴在保护钻头、减少钻头磨损及增加进尺、提高机械钻速方面有显著作用。
应用推荐