... bush bearing衬套轴承;滑动轴承 drill bush钻套 copper bush铜套;铜轴套;铜衬套 ...
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drill jig bush 钻套
·2,447,543篇论文数据，部分数据来源于NoteExpress
drill holder
George Bush, the incumbent, wants Congress to let oil firms drill in areas of Alaska and coastal waters that are currently off-limits for environmental reasons.
ECONOMIST: Oil prices
But a Bush administration mandate to fast track energy development across the West has energy companies eager to drill in its habitat.
NPR: Drilling to Begin in Colorado Ferret Habitat
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