小程序连接蓝牙打印机:翻译:请问铅笔是怎么制造的?是不是两瓣木头把笔心夹住后粘在一起?
来源:百度文库 编辑:神马品牌网 时间:2024/05/03 09:07:23
How are pencils made? Is it by putting the lead between two strips of wood and then glue it together?
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来源:百度文库 编辑:神马品牌网 时间:2024/05/03 09:07:23
How are pencils made? Is it by putting the lead between two strips of wood and then glue it together?