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钻机
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钻机
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钻机
释
drilling rig
钻机
在石油钻井中,用来带动钻具破碎岩石,向地下钻进,钻出规定井眼,以获取石油或天然气的地面成套钻井设备。
理学
钻机
释
drill rig
钻机
在地质勘探过程中,带动钻具从地下钻取岩心、矿心、岩屑、液态样、气态样等实物地质资源的专用机械设备。
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economic value of water resources
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Economic Zone on the west side of the Straits
economization
economized rational approximation
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economizer damage
economizer hanger tube
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Economy and Society
economy circuit
Economy, Environment and Equity model
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economy in the revolutionary base areas
economy of capitalism in Holland in the 17th century
economy of North America in the colonial era
economy of traditional Chinese herbal medicines
econophysics
e-consumer
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ecophilosophy
ecophysiology of microorganisms
Eco Pickled Surface
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