bit bearing area 牙轮钻头承压面积
bit bearing failure 牙轮钻头轴承失效
bit bearing wear equation 轴承磨速模式
cone bit bearing failure 牙轮钻头轴承失效
bit-bearing life 牙轮钻头轴承寿命
journal bearing bit 滑动轴承钻头
roller bearing bit 滚柱轴承钻头
sealed bearing rock bit 密封轴承牙轮钻头
journal bearing insert bit 轴颈轴承镶齿钻头
The failure analysis of the high speed roller bit bearing.
高速牙轮钻头轴承的失效分析。
Service life of bit bearing is not only determined by bearing material, but also by its environment.
钻头轴承的寿命不仅取决于轴承材质，更取决于工作环境。
Wheel is a new diamond drill bit for oil drilling tools, drill bit bearing life with their life impact of crucial importance.
轮式金刚石钻头是一种新型的石油钻探工具，钻头轴承的寿命对其使用寿命有着致关重要的影响。
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