positive lawn.制定法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 interference正干扰positive tramsmission[电] 正输送positively controlled强制控制的positive semidefinite半正定positivepsychotherapy积极心理治疗positive acceleration正加速,正加速度positive video signal正极性视频信号,正视频信号positive prescriptionn.取得时效positive transparency正透明度Positive-separation正向隔离