A mathematical theory of fuzzy probability measure has been used for solving the problems of rock mass displacements and deformations due to excavation, especially in the. mining of metallic ore.
本文将模糊数学中的模糊概率测度理论用于研究地下开挖尤其是地下金属矿开采而导致的岩体移动和变形问题。
2
Bulges and tentacles ofore extend haphazardly from a central mass.
矿石 的凸出物及细枝不时地从中心块体伸出。
3
The effects of leaching temperature, initial KOH concentration, leaching time and mass ratio of alkali to ore on the leaching rate of Nb and Ta were investigated.