“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	subject search subject service subjects of intellectual property rights subjects of national unified examination for admissions to general universities and colleges Subject To Change: Creating Great Products & Services for an Uncertain World: Adaptive Path on Design subject tree subject variable subject wave subkingdom sublaminar sublance sublanguage sublation sublattice sublayer sublepton sublethal damage repair sublethal dose sublethal effect sublethal gene sublevel sublevel caving method without sill pillar sublevel caving method with sill pillar sublevel open stoping with subsequent backfill sublevel set

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