The use of rechargeable battery charging to the valve, fluid flow of the energy supplement for battery power.

利用充电蓄电池向阀门充电，流体流动产生的能量可为蓄电池补充电。

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The use of rechargeable battery charging to the valve, fluid flow of the energy supplement for battery power.

利用充电蓄电池向阀门充电，流体流动产生的能量可为蓄电池补充电。

youdao