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首页 - 英汉词典 - R字开头的单词或词组 - rate of penetration

英语解释

rate of penetration

汉语翻译

【经】钻井速度, 机械钻速

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rate-of-penetration log absence rate air change rate salary rate standard second rate base rate burn rate zero rate of duty yield rate year-end rate writing rate word time rate

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