AN EXPERIMENTAL STUDY ON THE PREDICTION OF FORMATION ROCK HARDNESS BY USING THE ACOUSTIC VELOCITY
ZHAO Xiuju li Chuncheng LI Zukui YAN Jing
西南石油大学学报(自然科学版) . 1999, (3): 25 -27 .  DOI: 10.3863/j.issn.1000-2634.1999.03.008