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PPT-Bombarding!!!

PPT-Bombarding!!!

Author : cheryl-pisano | Published Date : 2016-02-22

By 13 th 化學教學長陳熊喵 不會實作欣賞即可 黑火藥 材料 1 硝酸鉀 氯酸鉀 都可 氯酸鉀威力較佳 2 硫磺粉 3 木炭粉 4

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