使集中集中或被聚集; 定位.To concentrate or be concentrated; localize.使集中,使聚合:使 ( 如光线 ) 集中在一中心点或向中心点集中; 集中.To cause ( light rays, for example ) to converge on or toward a central point; concentrate....
Objective : To investigate myocardial injury and its mechanism after biliary tract obstruction.目的: 观察胆道梗阻后心肌损伤情况并探讨其损伤机制.Biliary atresia is a common, cholestatic disease of infancy of unknown cause with a poor prognosis....
Several kinds of novel extraction solvents were presented which mainly included N - formylmorpholine, dimethyl formamide, etc.介绍了石油化工领域采用的几种优良抽提剂,包括N - 甲酰吗啉 、 二甲基甲酰胺等....