这老人因痼疾已卧床很久了.The old man was in bed with an obstinate disease.他身患痼疾, 常年缠绵病榻.He's bedridden throughout the year with a lingering, obstinate disease.细辛(马兜铃科细辛属)为我国传统中草药,具有祛风散寒,通窍止痛,温肺化饮之功效,自古以来,一直被医家视为祛除痼疾的常用药.Asarum ...
目的探讨我国二甲基甲酰胺 ( DMF ) 的生物接触限值 ( BEI ).Objective To explore the biological exposure indices ( BEI ) of dimethylformamide ( DMF ) in China.研究表明,该反应器可有效降解苯甲酰胺.The results show that the new type reactor could degrade benzamid...