【摘要】 逻辑分析时,明确概念是第一及最重要的步骤;概念的内涵与外延分别用“定义”与“划分”的方法来确定。本文分别用定义及划分来确定“材料的内涵”及“材料学的外延”。更多还原

【Abstract】 Concept is the first and the most important step in logic analysis; the intension and extention of the concept are determined by definition and classification respectively.The definition of material and the classification of materialogy are discussed in this paper.更多还原