[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

检测速度与准确度存在权衡:3秒出结果的快检多为定性判断(红/绿指示),只告诉你'超标/不超标';需要具体ppm数值的定量检测通常要等30秒以上并需校准

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