搜索 - 科创

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木器厂，样式几千种，，但大概都是图片这种，木柄用机器加工出来形状了，用手拿着在砂纸轮上来回旋转移动，把木头表面和边边角角打磨的光滑之后再油漆。最后才安装毛发，，我就是把木头毛坯打磨光滑，想...

我一个月后要开始做一个实验，大概需要零下20度的低温，尽管西安冬天很冷，但是仍然无法达到。谁能介绍一个可以保持一到两小时左右零下20度的方法。PS：不要太困难，目前本人没有液氮，没有专业制冷设备，只有...

昨天草草搭了个小SGTC，由于次级电感较小，就加大了顶端----不锈钢盆。 TC由12V蓄电池供电（实测11.65V），ZVS连高压包升压，功率尚未计算。比较论坛中的火花间隙，总...

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