external ac power造句

例句与造句

1. The device, seemingly designed to appeal to Y2K phobics and boaters, operates without the need for external AC power or a disposable battery.
2. To minimise weight and bulk in the field, portable recorders had an external AC power supply, or could be operated from rechargeable nickel-cadmium batteries.
3. It's difficult to find external ac power in a sentence. 用external ac power造句挺难的