| 释义 |
〔riffle〕In mining, the sectional stone or wood bottom lining of a sluice, arranged for trapping mineral particles, as of gold.矿石采集槽：在采矿中，用来分离金属粒子、如金子的槽沟的断面石头或树根隔离物〔fracture〕The characteristic appearance of the surface of a broken mineral.断面：破碎矿物表面的典型外观 |