positive cam[机] 确动凸轮
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
positively charged liquid film electrode阳性液膜电极
positive-displacement expansion engine[化] 容积式膨胀机
POSITIVE CLUTCH PISTOL GRIP SCREWDRIVERS离合器式脉冲螺丝刀
positive deviation and negative deviation绝对正离差与负离差
positive pressure central air conditioner正压中央空调
Positive Combat Identification Task Force绝对战斗识别特遣部队(美国)
positive occipital sleep transient sharps阳性枕区睡眠阵发尖波
positive and negative feedback regulation正负反馈调控