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nozzle puncture
释义
nozzle puncture
Encyclopedia
工学
钻井装备
释
nozzle puncture
水眼刺坏
可换式喷嘴与钻头体之间的密封失效,导致钻井流体冲蚀损坏安装喷嘴结构的现象。
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calculation of reserves
calculation of river surface profile
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