并行-并行运算
parallel parallel operation
不对称交流－直流电镀
asymmetric AC-DC electroplating
交流/直流电弧法
AC／DC arc discharge method
交流运行
Alternating current operation
交流-直流变换装置
alternating continuous-current commutating machine
交流直流干电池
alternative currentdirect currentall dry
交流直流转换
alternating current to direct current
交直流并联系统
AC and DC parallel power system
小电流交直流电子负载
low current AC and DC electronic load
直流交流变换器
direct-current-alternating-current converter