Then the mathematic expressions of calculating Fsa andKcare derived, and the computational model to calculate the apparent area ofarbitrary shape cross section is established by constructing a new basic solution: two-dimensional constant dipole distributing linear element.
然后利用细长体理论推导出了非圆因子F_(SB)和翼身干扰因子修正系数足K_c的表观面积表达式，并通过构造了一种基本解——二维常值偶极子分布线元，建立了任意形状截面表观面积的计算模型。
参考来源 - 防区外机载布撒器总体设计关键技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
采用XRD、SEM、IR分析技术对催化剂的晶体结构、表面形貌及组成进行了表征，并利用方波电位法对电极的真实表观面积进行了测量。
The morphology, crystal structure and composition of catalysts are characterized by XRD, SEM and IR, respectively. The square wave potential technique is used to assess the real surface area.
受害叶面积百分率和症状出现时间体现了作物表观伤害程度。
The area of harmed leaves and the time of the symptoms can show the apparent injury extent of the crops.
与传统高产栽培管理比较，单位面积干物重、茎物质积累量和叶片的物质表观转出量高。
The dry matter weight per unit, dry matter accumulation per stem( panicle), and transportation of leaf apparent matter was more than the high yield crop management.
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