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."
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We’ve made tweaks to several of our default settings in this release including defaulting to enabling automatic updates, turning off intrusive WiFi notifications, and removing the Multitasking View and System Settings launchers from the dock. System Settings is always available from Quick Settings and Multitasking View can be launched by selecting the already active workspace item in the dock. You can of course always change which apps are pinned to your dock and adjust other options in System Settings.，更多细节参见im钱包官方下载