[甲乙] 失物招領
有人撿到松香嗎
中夜BAND組結束後我好像不小心遺留在台上...
(我是姜懿軒)
備註：
什麼是松香
松香，具可燃性，以富含松脂的松樹為原料
通過不同的加工方式得到的非揮發性的天然樹脂稱為松香。
松香亦用在弓弦樂器如小提琴、二胡等的弓，用松香擦弓毛
使之與弦的摩擦力增加利於發出聲響。(wiki)
圖：
┌┐ ┌┐
│├────┤│
││ ││ ←長這樣
│└────┘│
└──────┘
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