Unverified90% confidenceCautionTime unknown
户外派对避免使用氢气球（氦气球才安全）——氢气遇明火/静电可燃爆，商家为压成本常用氢气充气，购买充气气球务必确认气体为氦气
1
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90%
Confidence
Long-term
Relevance
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