rock strength短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 岩石强度 Porosity and rock/span> strength of formation had got by utilizing mathematics model of porosity and rock strength which base on acoustic time have big derivation with actual situation. 现有基于声波时差的孔隙度及岩石强度计算模型反演出的地层孔隙度及岩石强度信息与实际地层偏差较大。 lib.swpu.edu.cn