赛斯专业词典
单牙轮钻头
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盘式单牙轮钻头
disc one-cone bit
偏心单牙轮钻头
mono-cone bit with offset
四牙轮钻头牙轮支架
bridge of the bit
牙轮钻头钻进
roller bit drilling
roller boring
差异式独牙轮钻头
zublin differential bit
纯滚动牙轮钻头
true-rolling bit
带蹼牙轮钻头
DM bit
定向型三牙轮钻头
directional-type tricone bit
独牙轮钻头
zublin bit
非自洁式牙轮钻头
non self-clearing bit
nonself-clearing bit
钢齿牙轮钻头
steel tooth bit
steel tooth roller cone bit
滚柱轴承锥形牙轮钻头
cone type roller bearing rock bit
密封轴承牙轮钻头
sealed bearing rock bit
喷射式三牙轮钻头
jet type tricone bit
喷射式牙轮钻头
jet nozzled rock bit
平底牙轮钻头
flat toothed bit
瑞德牙轮钻头
Reed roller bit
三牙轮钻头
three roller bit
three-cone bit
tri cone bit
three cone bit
tricone rock bit
tri-cone bit
tricone bit
three-cutter bit
十字形四牙轮钻头
cross roller rock bit
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单边导数system dynamic grey relative analysis恒电流分析Bessel function of the second kind天津induced ordered weighted averaging IOWA operatorrank orderinghitch adjustmentsharp print