英语词汇“drilling time”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	drilling time
释义	drilling time drilling time [′dril·iŋ ‚tīm] (engineering) The time required in rotary drilling for the bit to penetrate a specified thickness (usually 1 foot) of rock. The actual time the drill is operating.
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