?备电源

... 电测 [工业] electrical logging◇电测法 electrical measuring method; 电测高度计 electric(al) altimeter; 电测高温计 electric pyrometer; 电测功率计 electric dynamometer; electrodynamometer; 电测厚度计 electric thickness gauge; 电测计 electroprobe; 电测计数器 prospecting counter; 电测井 electric logging; 电测深仪 electric depth finder;电测学 electric measurement; 电测仪[仪表] electrical measuring [prospecting] instrument; electric logging device [unit]; 电测诊断 telediagnosis 备电源 stand-by power source 常备电池 stationary battery ...