The benchmark Shanghai Composite Index once stood above 3600 and closed at 3599.62 Monday, up 4.45%, with securities, metals and petrochemical stocks leading the trend.
7日沪深两市普涨，沪指盘中一度收复3600点关口，最终收于3599.62点，涨幅4.45%，证券、有色金属及能源板块涨幅最大。
Using large double drive melt pumps in petrochemical industry has become a trend.
在石化行业中使用大型双驱动熔体泵已成为一种趋势。
This paper introduces the application cases of gas membrane separation technology in petrochemical industries emphatically and analyses the developing trend of gas membrane separation technology.
着重介绍了气体膜分离技术在石化工业上的应用实例，并分析了气体膜分离技术的开发趋势。
应用推荐