搜索 - 科创

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阿丕师傅：因来论坛的时间很迟，你转让的发动机制作摸具被其他师兄捷足先登而倍感遗憾。一套好的摸具可以很大程度保证发动机的质量和制作效率。希望有时间给...

我用的是硅钢片的变压器加整流管和电容做成的12V充电器.但这种充电器充满了都不知道.谁画个简单点的呢?这几天打算去买点零件.所以想早点知道要用的零件这样我好做一个出来 [s:249] 主要是充电部份在...

最近在设计一样装置，但是在计算效率时不知道怎样计算吸热。查了一下也没有发现合适的公式。如下。在一个容积可变的容器中将24kg,35℃的二氯甲烷完全加热到汽化并且压强为101kpa。怎样计算吸收的...

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