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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."。业内人士推荐旺商聊官方下载作为进阶阅读
。业内人士推荐旺商聊官方下载作为进阶阅读
Video evidence examined by the BBC reveals that 17-year-old Shreeyam Chaulagain - the youngest of the 19 victims - had been unarmed and was trying to leave the scene when he died.。业内人士推荐heLLoword翻译官方下载作为进阶阅读
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BYOB: complexity without payoff