The first soft metal layer and the second soft metal layer are correspondingly plated on the contacts of the positive pole and the negative pole of the dry battery.
第一软金属层和第二软金属层是对应镀在干电池的正电极的触点上及负电极的触点上。
The first soft metal layer and the second soft metal layer are correspondingly plated on the contacts of the positive pole and the negative pole of the dry battery.
第一软金属层和第二软金属层是对应镀在干电池的正电极的触点上及负电极的触点上。
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