effective aid有效的援助effectiveadj.有效的；生效的；实际的Effective surface area for adsorption有效吸附表面积effective consolidation stress method有效固结应力法effective index of transmission lines线路有效性指标effective composition of raw material原料有效成分effectiveness of corporate governance公司治理效率effective cross section of ionization有效电离截面effectiveness of material utilization物质利用效果Effective height of wetland substrate基质有效高度effective mean temperature difference有效平均温差Effective Date of Federal Recognition联邦认可生效日期