| 释义 |
〔laterite〕A red residual soil in humid tropical and subtropical regions that is leached of soluble minerals, aluminum hydroxides, and silica but still contains concentrations of iron oxides and iron hydroxides.红土：湿润的热带或亚热带地区的红色残留土，被雨水冲掉了可溶性矿物质、氢氧化铝和二氧化硅，但是仍保留了氧化铁和氢氧化铁〔bauxite〕The principal ore of aluminum, composed mainly of hydrous aluminum oxides and aluminum hydroxides.铝土矿：铝的基本矿石，由含水的氧化铝和氢氧化铝组成 |