Through hole components welding using traditional manual welding or soldering. The circuit board surface mount components and through-hole components mixed together.
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。
Design of surface mount PCB makes an impact on soldering quality. The design of soldering pad, track layout, location and through hole treatment are discussed.
表面贴装印制板设计直接影响焊接质量，将专门针对表面贴装印制板的焊盘设计、布线设计、定位设计、过孔处理等实用技术作一些探讨。
Standard surface-mount technology or through-hole techniques provide adequate performance.
标准表面贴装技术或通孔技术提供足够的性能。
Mount the coil in a vertical position, on a hollow wood base so that a core can be moved up and down through the hole in the spool.
芒在一个垂直的位置上一空心线圈木材基地，使核心可移动通过在阀芯孔向上和向下。
Mount the coil in a vertical position, on a hollow wood base so that a core can be moved up and down through the hole in the spool.
芒在一个垂直的位置上一空心线圈木材基地，使核心可移动通过在阀芯孔向上和向下。
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