?地质钻管
... 钻管保护器 drill pipe protector 地质钻管 geological drill pipe 钻头钻管 bit nozzle ...
?地质钻杆
江苏无锡市地质钻杆(Geological drill pipe)厂家-无锡易泰..
MnMoB地质钻杆
That was as deep as one could look into the earth with the available geological tools--and also about as far into the ground as anyone knew how to drill a well and push pipe into the hole.
FORBES: A Gold Mine In Oil Exploration
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。