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 sequence polyphase system正序多相系统
positive antinuclear antibody test抗核抗体试验阳性
positive sequence fault components正序故障分量
positive-negative pulse stuffing正负脉冲填充
positive screw elevating mechanism螺旋提升机械装置
positive contrast ventriculography阳性造影剂脑室造影术
positive phase sequence resistance正相序电阻
Positive and negative coefficients正负系数