Unverified85% confidenceFactTime unknown
每次点燃前将烛芯剪至约5mm，可减少黑烟、防止火焰过大和容器熏黑；燃烧单次不超过4小时避免容器过热开裂
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85%
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Long-term
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Unverified每次燃烧前把烛芯修剪到3-5mm，可减少黑烟和积碳、延长燃烧时长；单次燃烧不超过4小时可防止玻璃过热开裂和烛芯偏移92% similarUnverified每次点燃前把烛芯修剪至约5mm（0.5cm），可显著减少黑烟、防止火焰过大烧焦玻璃杯壁；烛芯过长是黑烟和蜡杯发黑的首要原因92% similarUnverified每次点燃前将烛芯修剪至5mm左右，可显著减少黑烟和积碳，延长燃烧时长并保持火焰稳定91% similarUnverified每次点燃前修剪烛芯至约5mm，可显著减少黑烟、黑边（容器熏黑）和不均匀燃烧，是延长蜡烛寿命和保持洁净燃烧的关键操作90% similarUnverified每次熄灭前将烛芯修剪至约5mm，可减少黑烟、防止碳积（蘑菇头）导致的火焰过大和冒黑烟90% similar
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