【答案解析】[精解]在这种转变中，历史学家研究历史时，那些解释新史料的新方法充实了传统的历史研究方法。
During this transfer，traditional historical methods were augmented by additional methodologies designed to interpret the new forms of evidence in the historical study.
句子分析：
一、句子可以拆分为三段：During this transfer，/traditional historical methods were augmented by additional methodologies designed to interpret the new forms of evidence in the historical study.
二、句子的结构：
1)主干结构是一个被动语态的简单句：．．．methods were augmented by．．．
2)过去分词短语designed to．．．作宾语methodologies 的定语。
三、词的处理：
transfer 转变；
augmented 充实，补充；
additional methodologies 新方法designed to 用来；
interpret 阐释，解释，说明；
the new forms of evidence 新的证据形式，根据上下文意思引申为在历史学研究中的新史料；
in the historical study 在(补译：历史学家)研究历史时。