positiveismn.实证论；实证主义n.自信；独断positiveadj.积极的；肯定的；明确的；正面的；正数的；阳性的n.正面；正数；正片；[语]原级positive microfilm缩微胶卷正片positive relations积极关系positive reversing强制换向positive heterosis正优势positive curvature正曲率positive mentality积极心理positive appraisal积极评价positive logistics正向物流positive potential正电势positive guarantee[法] 积极的保证； 积极的担保