| 单词 | 冶炼 |
| 释义 | 〔Geber〕Arab scholar and alchemist who wrote a number of influential books of alchemical theory, includingSumma Perfectionis. 格伯：阿拉伯学者和炼金家，写了许多有关炼金理论的颇具影响的书籍，包括《完美的冶炼产品》 〔pyrometallurgy〕An ore-refining process, such as smelting, dependent on the action of heat.热冶，火法冶金：一种冶炼矿石的程序，如熔炼，它依靠热的作用〔selenium〕A nonmetallic element, red in powder form, black in vitreous form, and metallic gray in crystalline form, resembling sulfur and obtained primarily as a byproduct of electrolytic copper refining. It is widely used in rectifiers, as a semiconductor, and in xerography. Its photovoltaic and photoconductive actions make it useful in photocells, photographic exposure meters, and solar cells. Atomic number 34; atomic weight 78.96; melting point (of gray selenium) 217°C; boiling point (gray) 684.9°C; specific gravity (gray) 4.79; (vitreous) 4.28; valence 2, 4, or 6. See table at element 硒：一种非金属元素，粉末状时呈红色，玻璃状时呈黑色，结晶状时呈金属般的灰色，与硫类似，通常作为副产品在电解法冶炼铜时获得。广泛地用于整流器（如半导体）和静电复印术中。其光电压的和光电导的效应使它可在光电池、照相曝光表和太阳能电池中发挥作用。原子序数34；原子量78.96；（灰色硒的）熔点217°C；沸点（灰色硒的）684.9°C；（灰色硒的）比重4.79；（玻璃状的硒）比重4.28；化合价2,4或6 参见 element〔reduce〕To change to a metallic state by removing nonmetallic constituents; smelt.冶炼，提炼：通过除去非金属成分而变成金属状态；熔炼 |
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