[KongchangAI]
Unverified85% confidenceTradeoffTime unknown

亮度/射高越高越易被发现,但燃烧持续时间往往越短:降落伞火箭射高300米但燃烧仅40秒,手持火焰仅数十米高度却可持续60秒;应根据是否已有救援方向来搭配——先火箭引起注意再手持火焰指引定位

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