电池的污染问题的电动自行车。
Battery electric bicycle on the problem of pollution.
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蓄电池是电动自行车的核心部件。
The batteries are the key parts of the electric bike.
阀控式铅蓄电池仍是电动自行车的主要电源。
The VRLA battery was the basic power source for electric bicycle applications.
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