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#采用外部12v供电，减少复杂度，提高稳定性#12v大型蜂鸣器，走秒时发出高分贝提示，倒计时快为0的时候加速鸣叫。 #液晶显示，在户外依然能提供清晰显示。#钥匙保险开关#航空插头，两路输出#采用MOS...

选择固体火箭发动机点火方式和内孔工艺的时候，需要注意设计喷燃比变化曲线和实际情况的区别。发动机设计时计算的喷燃比变化曲线，是假定瞬间点燃药柱暴露的内表面，药柱各处燃烧的速度相同。但实际上并非如...

我自己画的，应没错，二极管好多，搞的这么复杂。它的高压线圈不错。比一般国产警棒上用的好多了。全密封的，初级0.2欧，次级2.6K。达到2.6K，说明内部圈数不少了吧。所以输出电压估计可达到万把V...

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