弄清，确定，查明( ascertain的过去式和过去分词 )；

1. 查明,确定：platelet aggregation 血小板聚集 | ascertained 查明,确定 | cerebral 大脑的

2.

2. 确保了：安排了 Arranged | 确保了 Ascertained | 评估出 Assessed

3. 确定：Addressed 致词 | Ascertained 确定 | Broadened 拓展

1. discovered or determined by scientific observation

    e.g. variation in the ascertained flux depends on a number of factors
           the discovered behavior norms
           discovered differences in achievement
           no explanation for the observed phenomena

    Synonym: discoveredobserved