xxx处于最理想净化被认识的阶段.（没有上下文,很难准确意译,只能直译）全文是 the history of Cubism falls into three pahases_the first........followed by the Analytical phase from 1910 to 1912,which, by theway ,was the phase in which the most abstract purification of the form was realized ,and finally ......自1910到1912的解析阶段是这种形式被认知的最抽象单纯化的一个阶段。