"The plight of the mackerel is part of a wider failure to take scientific advice intended to keep stocks healthy and able to recover from fishing pressure.
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WPS官方版本下载作为进阶阅读
那时，我从攀枝花独自来成都念书，平日在学校寄宿，周末回到小姨家。这是个三代同堂的大家庭——外公外婆、小姨小姨父和三表妹，还有在外地打工的舅舅家的二表妹。
Grace Bell told the BBC 'words can't explain' experience of having a baby
Logicians and their bonnets