“七五”期间,冶金地勘总局十分重视提高钻探效率,并取得明显成效,平均台月效率由“六五”期间的322.8m上升到“七五”期间的588.2m.自1985年以来,平均台月效率以每年11.6%的速度不断提 During the “Seventh Five-Year Plan” period, the Bureau of Metallurgical Geological Prospecting attached great importance to improving drilling efficiency and achieved remarkable results. The average monthly efficiency of Taiwan and Taiwan increased from 322.8m during the “6th Five-Year Plan” period to 588.2m during the “Seventh Five-Year Plan” period. Since 1985, The average monthly efficiency of Taiwan at 11.6% per annum continuously raised