搜索 - 科创

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3、矢量网络分析仪 hp8754a 4~1300MHz这台仪器室全好的，最近我还用过，测相位差相当不错，可以直角坐标显示，也可以极坐标显示。只有仪器，电桥要自己配或者自己做。无维修史（拆开研究过。。）...

变压器的原线圈替换感应加热线圈。请问slof：和变压器原线圈串联的谐振电容容量和耐压如何确定？滤波电路是否需要？（变压器功率暂定650W，电源电压AC220-240V输入双向可控硅调压）驱动板用两个...

twoone 发表于 2014-2-15 21:26 只能理解。。毕竟现在写个程序也不容易开源的大神也有好多好吧。。别的不说，就说51，就说杜X最喜欢的电子钟。。看看这庞大的神程序吧 http://b...

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