“drilling efficiency index”的概念、定义、翻译、参考文献-科学参考

单词	drilling efficiency index
释义	drilling efficiency index Encyclopedia 工学钻井经济评价释 drilling efficiency index钻井效率指标钻井一口井占用的时间。是评价钻井队伍施工速度快慢的指标。又称钻井速度指标。
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