The tests used in standards for evaluating smoke alarms were developed back in the 1980s. However, despite changes in building materials since then, smoke alarms remain reliable, says Chagger: "They still respond to all the main fires we get today."
Laura CressTechnology reporter
。业内人士推荐91视频作为进阶阅读
Виктория Клабукова，这一点在51吃瓜中也有详细论述
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