传统的通孔元件的焊接采用波峰焊或手工焊接。目前电路板上表面贴装元件和通孔元件混合在一起。
Through hole components welding using traditional manual welding or soldering. The circuit board surface mount components and through-hole components mixed together.
以ewb电路分析方法中的极零点为分析工具，分析复杂电路或系统的传递函数，来达到取代枯燥繁琐的手工计算的目的。
By using the Pole-Zero as the analytical means in EWB circuit analysis, the transfer function was analysed in complicated circuit or system to replace the dull and onerous manual computation.
使用手工具和烙铁来调整和更换损坏或不当运作电路和电子元件。
Adjust and replace defective or improperly functioning circuitry and electronics components, using hand tools and soldering iron.
事实证明，随着电路规模的增大和功能的增强，采用计算机辅助分析和设计取代传统的手工方法，是实现逻辑电路分析设计的不可缺少的重要手段。
In fact, alongside the growth of circuits scale and function, it is inexorable trend that we replace tradition manual operation by computer assistant electronic circuit analysis and design.
详细介绍了汽车仪表印刷电路板手工锡焊的组成要素及工艺过程。
This paper introduces in detail the component and technology process of printed circuit board hand tin-lead bonding of auto instrument.
Guyett说到，旧式的介质传输系统的运行是通过简单的发动机和电子电路板，打印时经常需要手工修复。
Guyett says that older older media transport systems worked by simple motors, electronic circuit boards and often required manual corrections by the operator during printing.
Guyett说到，旧式的介质传输系统的运行是通过简单的发动机和电子电路板，打印时经常需要手工修复。
Guyett says that older older media transport systems worked by simple motors, electronic circuit boards and often required manual corrections by the operator during printing.
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