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钻铤
释义
钻铤
Encyclopedia
工学
钻井装备
释
drill collar
钻铤
钻杆柱与钻头之间的零件。
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oxyphotobacteria
oxyradical
oxysalt minerals
oxysphere
oxytetracycline
oxytocin
oxytropis myriophyllae herba
oxytropis spp poisoning
oxyuriasis of equi
oyamalite
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Oyem
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Oyo Empire
Oyo State
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oystercatchers
Oyster Girl
oyster herpesvirus
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oysters
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Oyster strain "Huanan 1"
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