1) drill
打钻
2) drilling and spraying holes
打钻喷孔
3) drilling technology
打钻技术
1.
At the present,the problem which is urgently to be solved in gas discharge is the drilling technology in soft coal seam gas discharge, especially the drilling technology of the deep hole.
目前在瓦斯抽放中急待解决的问题是软煤层瓦斯 抽放的打钻技术,尤其是深孔打钻技术。
4) drilling effect
打钻作用
1.
Through the process, seeds buried themselves into the soil to a certain depth and it is defined as drilling effect of seed or diaspore.
锥形繁殖体结构的功能几乎在植物生活史的各个阶段上都有体现,然而,其最基本的功能是通过繁殖体的打钻作用将自身埋入土壤。
5) water for drilling supply
打钻供水
6) Boring and exploration review water
打钻探水
参考词条
补充资料：钻天打洞
1.比喻千方百计地投机钻营。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。