| 查看: 619 | 回复: 1 | ||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | ||
longwen8木虫 (文坛精英)
|
[求助]
求助（修改）英语语法
|
|
| Experimental melting temperature is 1200 ℃, while the temperature of Fe and Zn could be reduced is above 1400 ℃, and the temperature of Si could be reduced is above 1800 ℃. So the oxide of above metal are not reduced, just formed the slag. The affinity between Cu, Bi and oxygen are very small, so the most be restored into the crude lead. While the affinity between As, Sb, Sn and oxygen are greater than the lead, however, their solubility are great in the lead, it is easy to be restored into the crude lead. But these metals have low levels, and the purity of lead in recycled metal is approximately 97.2%, which meets the general industrial needs. |
回复此楼» 猜你喜欢
上海工程技术大学张培磊教授团队招收博士生
已经有3人回复
-
上海工程技术大学【激光智能制造】课题组招收硕士
已经有5人回复
-
求助院士们，这个如何合成呀
已经有4人回复
-
临港实验室与上科大联培博士招生1名
已经有9人回复
-
想换工作。大多数高校都是 评职称时 认可5年内在原单位取得的成果吗？
已经有7人回复
-
需要合成515-64-0，50g，能接单的留言
已经有4人回复
-
自荐读博
已经有4人回复
-
写了一篇“相变储能技术在冷库中应用”的论文，论文内容以实验为主，投什么期刊合适？
已经有6人回复
-
带资进组求博导收留
已经有10人回复
-
最近几年招的学生写论文不引自己组发的文章
已经有11人回复
genhunter
至尊木虫 (著名写手)
- 翻译EPI: 387
- 应助: 259 (大学生)
- 金币: 9757.4
- 散金: 10
- 红花: 60
- 帖子: 2484
- 在线: 1793小时
- 虫号: 2558361
- 注册: 2013-07-22
- 专业: 肿瘤化学药物治疗
【答案】应助回帖
★ ★ ★ ★ ★
longwen8: 金币+5, 翻译EPI+1, ★★★★★最佳答案 2017-09-13 09:36:56
longwen8: 金币+5, 翻译EPI+1, ★★★★★最佳答案 2017-09-13 09:36:56
| Experimental melting temperature is 1200 ℃, while Fe and Zn need a temperature above 1400 ℃, and Si needs a temperature above 1800 ℃ to be reduced. Therefore the oxides which are not reduced under this condition , are turned into slag. The affinity between Cu, Bi and oxygen are very weak, so most of these will (not??) be partitioned into the crude lead. While the affinity between As, Sb, Sn and oxygen are greater than that of lead and oxygen , however, they have good solubility in molten lead, and are easily partitioned into the crude lead. Since these metals only present in low levels, and the purity of lead in recycled metal is approximately 97.2%, which meets the needs for general industrial purpose. 意思表达得不清楚 |
2楼2017-09-13 08:26:37