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for subject
Drilling
containing
钻速记录
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all forms
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in specified order only
Chinese
English
八小时内的
钻速记录
tattletale
钻速与钻时记录
geolograph
钻速记录
仪
tattletale
钻速记录
仪
rate of penetration recorder
钻速连续记录仪
continuous drilling rate logger
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