无源[wú yuán]
{无} passive
1. passiveqswitching：passiveqswitch 无源q开关 | passiveqswitching 无源yK | passiveremotesensing 被动遥感
2. PRU Passive RU：PREF Power Reflected 后向功率 | PRU Passive RU 无源RU | PSA Power Supply Adapter 电源适配器
3. passive q switch：passive isolation 钝态隔离 | passive q switch 无源 | passive q switching 无源?