高效钻进 meaning in Chinese

efficient drilling

The present situation of many areas lack water seriously in china and execution of strategy of national geology survey makes it become urgent assignment that how to drill soft - middle hard rock rapidly and with high efficiency encountered frequently in drought and water - scarce area
摘要中国许多地区严重缺水的现状及国家地质大调查战略的实施，使得如何快速、高效钻进干旱缺水地区大量遇到的软中硬岩层成为当务之急。