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上網睇多數都係呢兩樣, 你地會點揀?
納秒激光好似係舊野黎 皮秒多d人做wo!
皮秒激光與納秒激光最大分別在於皮秒激光脈衝時間更短，它主要借由產生機械震波來將色素粒子變成粉塵，並非像納秒激光一樣，只依靠由熱的效應來產生效果。
仲邊有人做納秒
