| 摘要 |
A mouth washer has a nozzle substantially aligned with discharging direction of water pumpt, while a motor for driving the pump, a power source battery and a battery-charging secondary coil are disposed in series with the pumpt, and a water tank is provided along one side of such series disposition, whereby any hydraulic pressure loss upon jetting water out of the nozzle is reduced to realize a water jet under a sufficient hydraulic pressure, concurrently prolonging the life of the battery and maximizing the capacity of the water tank.
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