Objective: Set up a method of isolation and purification of early pregnancy factor (EPF) from human pregnancy sera, and get pure EPF.

目的：建立一条从妊娠早期妇女血清中分离纯化早孕因子的技术路线，获得高纯度的早孕因子。

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Make use of principal factor analysis to set up the objective evaluation system of wool-like fabrics, which can express the characters totally and objectively.

采用主因子分析方法，建立了仿毛织物的客观评价系统，比较全面而客观地表达了织物的风格特征。

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Objective to set up a multiple factor analysis method for assessing the incidence and outcome of intracranial aneurysms in patients treated with Guglielmi detachable coils (GDC).

目的建立一种评估颅内动脉瘤栓塞治疗效果的多因素分析方法。

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