A、opened and burned material removed
B、left closed with vents off until all boundaries are cool
C、checked for oxygen content
D、doused with water to prevent reflash
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A、opened and burned material removed
B、left closed with vents off until all boundaries are cool
C、checked for oxygen content
D、doused with water to prevent reflash
时间：2021-07-22 18:28 关键词： 探火与消防设备
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