He appreciated her acknowledgement of his maturity.她承认他的成熟，他对此心怀感激。In acknowledgement whereof I have hereunto affixed my signature.下面是我的签名,确认我的誓言.He smirked in acknowledgement of their uncouth greetings, and sat down.他皮笑...
A two - step process has been developed to recover cobalt from arsenite ores.为了从亚砷酸盐矿中回收钴,开发了二段工艺.The absorption reactions of goethite and its precursors on arsenite were studied.观察了针铁矿及其前体对溶液中亚砷酸根离子的吸附过程和吸附性能.Copper ars...