被砾石与地层砂混合物充填的射孔孔道
gravelsand filled perforation tunnel
特长射孔孔道
extra-long perforation tunnel
填满砾石的射孔孔道
gravel packed perforation tunnel
淤塞的射孔孔道
filled perforation tunnel
安全减压活门
pressure safety relief valves
部门活动分析
departmental activities analysis DAA
胆道活检
Bile ducts biopsy
Bile-duct biopsy
obstructive jaundice bile-ducts
Bile duct biopsy
Bile ductal biopsy