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for subject
Earth sciences
containing
岩 心 钻
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in specified order only
Chinese
English
南非
岩心钻
井协会
South African Core Drilling Association
地下钻掘和岩性信息中心
Underground Excavation and Rock Properties Information Center
大口径金刚石
岩心钻
进系统
large diameter diamond core system
岩心钻
头钻进
coring
无
岩心
金刚石
钻头
blasthole bit
日本超深
岩心钻
探技术研究会
Super Deep Core Drilling Study Group, Japan
金刚石
岩心钻
机制造商协会
Diamond Core Drill Manufacturers Association
长
岩心钻
探计划
long core drilling program
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