搜索 - 科创

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首先假定楼主能够确认负载在DC 10~14V的电压范围内可以正常工作。本人有一试验性质的电控门锁系统，正常情况下耗电大约5mA，开锁瞬间1A左右。电源电路：120VA环牛+整流滤波+两只LM317并联...

700MM火箭箭体1）制作圆锥形火箭头部。用纸剪一个扇形，然后粘成圆锥形。把加强板加工成圆形，粘在椎体里面。再在圆锥底部用三块硬纸板和普通纸粘成圆柱形插头，以便能够插到壳体的上部。2） ...

这些东西是对对应的设备和应用条件设计的也没什么只要有床就能出来这东西也没什么好设计的 4个轮丢上去 2轴带上

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