多级涡轮钻具
sectional turbodrill
bended multiple turbodrill
三节复式涡轮钻具
triple-section turbodrill
单节式涡轮钻具
single section turbodrill
复式涡轮钻具
double-section turbodrill
三节复式涡轮钻机
triple-section turbodrill
分段式多级离心清水泵
sectional multi-stage centrifugal fresh water pump
积木式组合涡轮钻具
cordwood-type compound turbodrill
可调式多轴钻床
adjustable multiple spindle drill
低速大扭矩涡轮钻具
low speed high torque turbodrill
低速高扭矩涡轮钻具
low-speed-high-torque turbodrill