一次: once电源电缆: feed cable一次电源: primary power resource; primary power source; primary power supply电源电缆: feed cable; mains cable; power cable铝电源电缆: aluminium power cable铜电源电缆: co er power cable; copper power cable总电源电缆: primary power cable机场电源电缆: external power cable【电学】馈电电缆,电源电缆。: feed cable次电源: secondary source二次电源: secondary power source; secondary power supply电源电池: power cell; power-supply battery电源电流: supply current电源电路: electric powersupply circuit; power circuit/power supply circuit; power-supply circuit; supply circuit电源电门: cutoff switch; cutout switch; electrical power switch; power switch电源电网: power generating facilities and power grids电源电压: anschluspannung; mains input; power line voltage; power supply voltage; power-line voltage; powersupply voltage; powersupply's voltage/mains voltage; sour voltage; source voltage; supply pressure; supplyvoltage; voltage of supply; working voltage电源电压6: v-boost电源电压表: line meter电源电压接: voltage switch of sps电源电阻: mains resistance; source resistance双电源电路: two supply circuit; two-supply circuit一次电波: primary wave一次电池: decomposition cell; galvanic cell; one-shot battery; primary battery; primary cells and batteries一次电离: primary ionization