搜索 - 科创

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电子商店没有20KV高压电容，我就买了几十个3KV的瓷片电容，容量未知。然后每7个串在一起一起，做成耐压21KV的电容串，这样做了5串。电阻为1MΩ 2W 8个， 2MΩ 2W 1个 ...

发作性睡病是一种以日间不可遏制的睡眠为主要症状的罕见病，患者可能还伴有猝倒、入睡前幻觉和睡眠瘫痪等症状，目前的病理研究提示脑内Hcrt-1神经元的丢失可能是主要病因，诱发该病的因素有遗传因素、免疫因素...

发信人: zmAstronomy (阿蒙娜丽莎), 信区: Astronomy标　题: 天文学100小时：全世界掀起创纪录的天文学马拉松活动发信站: 水木社区 (Thu Apr 2 11:37:28...

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