2) boring
[英]['bɔ:rɪŋ] [美]['bɔrɪŋ]
钻孔;钻取
3) drilling
[英]['driliŋ] [美]['drɪlɪŋ]
钻孔;钻取;钻探
5) coring bit
取心钻头
1.
Based on strata characteristics,designed 8? matrix bodied triple stepped PDC coring bit and steel bodied multiple stepped tungsten-carbide-tipped coal coring bit.
为满足设计要求,选择平顶山五环实业有限公司研制的大口径绳索取心器,并根据地层特点,设计了81/2胎体式三阶梯PDC复合片绳索取心钻头及钢体式多阶梯硬质合金取煤钻头。
2.
The bottom hole flow physical model of a kind of PDC coring bits is established considering the effect of junk slot and teeth layout in this paper.
以一种现场常用的PDC取心钻头为原型,充分考虑排屑槽和切削齿对于井底流动的影响,建立了与实际相接近的PDC取心钻头井底流场的物理模型。
6) coring with drilling
随钻取心
补充资料：钻冰取火
1.见"钻冰求火"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条