positive set直接用上条柄拨针,固定位置,正集
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- and negative-current正负序电流
positive characteristic distortion正特性失真
positive displacement refrigerator容积式制冷机
positive end-expiratory pressure呼气末正压, 呼气末正压通气
positive conditional reinforcement正条件性强化
positive almost periodic solutions正概周期解
Positive and Negative in Cognition认知上的肯定项和否定项
positive definite Hermitian matrix