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为减少和预防因燃气灶具意外熄火引起煤气泄漏造成的煤气中毒事故,切实保障煤气用户更安全地使用家用燃气灶,上海市
To reduce and prevent gas poisoning accidents caused by gas leakage caused by accidental flameout of gas stoves, and effectively protect gas users from using domestic gas stoves more safely, Shanghai