大直径绳索取心钻进
large diameter wire-line coring
金刚石绳索取心钻进
Diamond Wire-line Coring Drilling
绳索取心钻进
Wire-line Coring Drilling
绳索取心钻探
Wire-line Coring Drilling
SYZX75绳索取心液动锤
SYZX75 wire-line coring hydraulic hammer
大口径绳索取心器
large diameter wireline coring tool
金刚石绳索取心
Diamond Wire-line Coring Drilling
绳索取心冲击回转
wire-line coring and percussive rotary drilling technology
反循环取心钻头
reverse circulation core bit
reverse circulation sampling bit