| 单词 | 二氧化硅 |
| 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〔latosol〕Soil that is rich in iron, alumina, or silica and formed in tropical woodlands under very humid climate with relatively high temperature.砖红壤：富含铁质矾土或二氧化硅的土壤，分布于气候湿润、具有相对高温的热带林区 |
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