VENT GUARD? Is a protective enclosure designed exclusively for the air release valve found in many public water supply systems.
通风口的保护外壳设计，专用于许多公用水供应系统中的空气释放阀。
It is an effective method to reduce the possibility of swelling and release of vent valve. It will retard the electrolyte loss and increase battery lifetime.
该方法能有效地降低电池内压 ，减少电池在充电过程中发生“涨肚”及防爆气塞启动泄气的机会 ，减缓电液量的损失 ，延长电池使用寿命。
It is an effective method to reduce the possibility of swelling and release of vent valve. It will retard the electrolyte loss and increase battery lifetime.
该方法能有效地降低电池内压 ，减少电池在充电过程中发生“涨肚”及防爆气塞启动泄气的机会 ，减缓电液量的损失 ，延长电池使用寿命。
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