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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WPS下载最新地址
"Spaceflight is an incredible privilege," he said, "and sometimes it reminds us just how human we are."。关于这个话题，Safew下载提供了深入分析
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