Unverified80% confidenceFactTime unknown
凝胶型固体香薰（透明果冻状）通过体积收缩挥发，当体积缩小约50%时香味浓度已显著下降，此时即使外观仍在也需更换
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
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