搜索 - 科创

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调试了一段时间，基本上工作正常了，虽然NE555短命的问题还没解决，我重买了一批NE555到手的还是NE555DR，但是这一批NE555能工作30分钟到1小时左右。实际效果如下：上电开启之后，SDR频...

项目目标：设计制造一台容易复刻，综合性能高的固体火箭发动机。发动机的具体参数如下：总冲：200Ns比冲：120S平均工作压力：9.15Mpa最高工作压力：10.5Mpa平均推力：220N工作时间：1S...

今天过得很充实..又点累挺高兴..上午起床玩CF..然后出街去寻找明天要和现在喜欢的女生一起去派传单的活儿..到处问..很高兴地找到了然后下午去一个女性朋友家里玩..然后两个人聊天过了一个下午 ...

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