| 单词 | lanthanum oxide |
| 释义 | lanthanum oxide [`lan·thǝ·nǝm `äk´sīd] INORGANIC CHEMISTRY La2O3 A white powder melting at about 2000°C; soluble in acid, insoluble in water; used to replace lime in calcium lights and in optical glass. Also known as lanthana; lanthanum sesquioxide; lanthanum trioxide. |
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