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But e-bikes containing lithium-ion batteries are a newer challenge. "When a battery fails, it doesn't necessarily ignite, it will often produce some off-gases," says Stephen Welch, senior lecturer at the University of Edinburgh's Fire Research Centre. "Those off-gases are toxic and flammable. If they accumulate, you can have an explosion risk.",更多细节参见91视频
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从变动幅度来看,消费电子及电气业是除了两个尾部行业(居民服务、修理和其他服务业,废弃资源综合利用业)之外扩张最快的行业,有披露研发人员的企业数量五年增长134.67%;科学研究和技术服务业在腰部以上行业中增幅较快,达到79.41%。
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