On global building sewer uses cupreous conduit is development trend.在全球建筑上下水道用铜水管是发展趋势.Using EDTA dispart ray luminosity method test cupreous in gold - cupreous - cadmium liquid.采用EDTA分光光度法测定金 - 铜 - 镉镀液中的铜.Whorl copper c...
他一直致力于在教育系统内为美籍拉美人和黑人争取权益。He was a champion for Latinos and blacks within the educational system.他一心一意致力于早日让被压迫者获得自由。He was single-mindedly devoted to the hastening of freedom for the oppressed.我一直在致力于推翻有关意义恒定性的谬谈。I have...