Native lead dioxide, PbO2, crystallizing in the tetragonal system and occurring as black crystals or black-brown masses.
| 单词 | θ6752 |
| 释义 | the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > rutile and uranite groups A02 > others (2) plattnerite1849 Native lead dioxide, PbO2, crystallizing in the tetragonal system and occurring as black crystals or black-brown masses. ramsdellite1943 A manganese-containing mineral that occurs as grey to black, platy, or finely crystalline masses, and is dimorphous with pyrolusite. |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。