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

单词	time efficiency of drilling
释义	time efficiency of drilling Encyclopedia 理学钻探技术经济指标释 time efficiency of drilling钻探时效钻探生产中，各种工况的时间占钻探工作总时间的百分比。
随便看	variational problem with free ends variational problem with mobile ends variational scheme variational series variational solution variational symbol variational theorem variational theory variational transition-state theory variational translation Variational Translation Theory variation between laboratories variation calculus variation centre variation coefficient variationcoefficient of orebody variation curve variation form variation in sign variation limiting matrix variation method variation of a charge variation of a function variation of a functional variation of a mapping

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