Key warder : valve control lead storage battery; charge method; balanced; Circling life.

关键词: 阀控式铅酸蓄电池; 充电方法; 均衡性; 循环寿命.

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Self - reverence, self - knowledge and self - control lead life to sovereign power.

自重 、 自知和 自制 引导生命达到至高无上的境界.

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