甲烷二磺酸亚甲酯MMDS）作为锂离子电池电解液中的关键添加剂，其含量控制直接影响电池的高温循环性能与使用寿命。然而，由于MMDS在强酸强碱条件下易水解、高温环境下易分解的特性，其检测过程对标准品的纯度
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新年新气象，新年送好礼啦！伟业计量开工活动——幸运大转盘于2月06日正月初九）上午8点准时开始，黄金足金999金条5g、美的破壁机、课程u盘、伟业计量玻璃杯、护眼台灯、1888
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中国消费者报深圳讯记者黄劼）部分培训机构存在售前虚假宣传承诺、诱导贷款支付培训费问题，以及部分学习机、阅读器和早教机的在线课程服务存有风险，这是今年上半年深圳消费者投诉出现的热点。深圳市消委会近日发布
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