搜索 - 科创

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今天从淘宝上购买了一颗4M长，6061-T6无缝铝合金管，外径50，内径44自己用来做发动机的。用不完，有需要的KCER可以站内信和我联系。原价出售：70元/米（邮费自理） PS:该铝管用于制作本人设...

暑假完了，当真要做点让人回味的事啦！！！！于是我就无聊的在家里做了一个肥皂泡火山！！！！！将盐，醋，肥皂液，洗手液，与食用油煮在一起，会喷出怎样的火花呢？？？？烘烤半小时后奇迹发生啦！！！！数...

先上图：材料：32MM的PVC给水管10CM，32MM的PVC管堵头1个，一根粗8MM的管，堵漏王，硬卡纸，尺子，圆规。首先，在卡纸上画出2个圆：一个外直径32MM，内直径8MM；然后剪下来...

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