一组回挨家挨户收废旧电池。
相信今后废旧电池回收处理技术会越来越多、越来越成熟。
In the future, the waste battery recycling and treatment will be well solved.
对废旧银锌钮扣电池中的银含量进行了检测，结果显示总合银量在20％-35％之间；
Tests on silver in wasted button cell show there are 20-35% of silver in button Cell.
我们可以不乱扔废旧电池；
始终以向当地废旧电池电池回收中心。
Always take used batteries to your local battery recycling center.
始终以向当地废旧电池电池回收中心。
Always take used batteries to your local battery recycling center.
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