positive MR正磁电阻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 empathy积极情感positive custody积极监禁positive tropism正向性,正感应性positive current正电流positive crystal正晶体positive cathexis积极投注positive ignition强制点火positive rhetoric积极修辞positive abscissa正性横坐标Positiveadjective表语形容词