就邮电系统及供电系统广泛使用VRLA阀控密封铅酸免维护蓄电池，由于该蓄电池的检测技术相对于开放式蓄电池更为复杂。
The VRLA storage battery is wide used in post and telecom system, The technique of detecting VRLA storage battery is much complex then that of detecting open type one's.
就邮电系统及供电系统广泛使用VRLA阀控密封铅酸免维护蓄电池，由于该蓄电池的检测技术相对于开放式蓄电池更为复杂。
The VRLA storage battery is wide used in post and telecom system, The technique of detecting VRLA storage battery is much complex then that of detecting open type one's.
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