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内置的充电池可使用长达五小时。
The built-in rechargeable battery has a life of five hours.
youdao
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内置的微处理器控制提供快速，安全和完整电池充电。
Built-in Microprocessor Control Provides Fast, Safe and Full Battery Charge.
youdao
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戒指内置的小型电池最长可维持五天。
The tiny battery inside lasts up to five days.
youdao
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戒指内置的小型电池最长可维持五天。
The tiny battery inside lasts up to five days.
youdao