Negative charge aerosol
permanent negative charge
variable negative charge
charge pump
电荷
进料泵
电荷泵
+电荷泵
充油泵
升压泵
供给泵
供油泵
辅助泵
电压泵
供水泵
充电泵
车底盘测功计
高压产生器
后级
浮动电源
深井泵
分频器
step-up and inverse charge pump
additional charge or accessory charge
conversion for performance of model pump to actual pump
A implies B gate， negative
abrasive grain with negative rake angle
absolute value of negative temperature
absorption curve with positive and negative absorb