geological boring meaning in English

地质钻探

Technical regulation for engineering geological boring of electrical power engineering
电力工程地质钻探技术规定
With regard to its field drilling applications in the geologically loose sandy pebble layers , kl vegetable - gum drilling fluid showed itself with excellent rheological behaviours in its abilities of lubrication , lost circulation , suspension and removal of debris , anti - shear shinning , and high coring rates , which satisfactorily meet the demands of geological boring in the dam foundation of huangjin ping hydroelectrical power plant
通过在黄金坪水电站坝基深厚砂卵石覆盖层钻探取芯的现场试验，证明了kl植物胶冲洗液具有优良的流变特性，润滑、堵漏、悬浮排除岩屑和抗剪切稀释能力显著，可实现高取芯率，能很好的满足地质钻探对取芯质量的要求。