第 1 章 运动的电子 ..........................................1
1.1 原子和电子................................................1
1.2 电荷和电流................................................2
1.3 基本电路中的电流....................................3
1.4 欧姆定律....................................................5
1.5 功率............................................................6
1.6 电阻............................................................6
1.7 示例：制造分压器....................................7
1.8 总结............................................................8
第 2 章 紧固件和黏合剂 .................................9
2.1 螺钉和螺栓................................................9
2.1.1 螺钉和螺栓的尺寸......................10
2.1.2 螺丝刀的类型 .............................11
2.1.3 螺钉螺栓头型 .............................12
2.1.4 选择螺钉和螺栓..........................13
2.1.5 垫圈 .............................................14
2.1.6 自攻丝螺钉 .................................15
2.2 铆钉.....................................................
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