“replacing bit without lifting drills”的概念、定义、翻译、参考文献-科学参考

单词	replacing bit without lifting drills
释义	replacing bit without lifting drills Encyclopedia 理学钻进工艺释 replacing bit without lifting drills不提钻换钻头绳索取心钻进过程中，在不起下钻的情况下，将孔底旧钻头单独或随内管总成一起打捞至地面，并将新钻头单独或随内管总成一起下入孔底进行钻进的作业。
随便看	Weed diversity weed dormancy weed ecology weed fecundity weed flora weed growth potential weed harmfulness weed induced dormancy weediness weeding hoe weeding in ancient China weed innate dormancy weed mimicry weed persistence weed phenology weed plasticity weed population dynamics weed population ecology weed quarantine weed quarantine methods weed rate of turf Weed Research weed resistance to pesticide Weed Science weed science

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