relative self相对自我relativeadj.相对的；比较的；相关的n.亲戚；[语]关系词relative oxygen consumption wastewater相对耗氧量Relative Double Phase-Ship Telegraph相对双相移电报relative molecular weight distribution相对分子质量分布relative dynamic modulus of elasticity动弹性模量Relative Division of Overlapping Space重叠空间的相对划分relative variance for cluster sampling整群抽样的相对方差relative bulk polymeriza molecule mass相对分子质量relative potassium accumulated quantity相对钾素积累量Relative difference between iorn radius相对离子半径之差relative photon attenuation coefficient光子直线相对衰减系数