检查从电瓶到喇叭之间的线路，处理破裂线段。
Check the line between the battery and the horn, and deal with the broken line.
PC中央处理器、印刷线路板如出现问题。
PC central processor, printed circuit board if there is a problem.
研究了废弃印刷线路板的主要成分在机械处理过程中的物理性质的变化。
The variety of physical properties of PCBs during mechanical treatment has been studied.
研究了废弃印刷线路板的主要成分在机械处理过程中的物理性质的变化。
The variety of physical properties of PCBs during mechanical treatment has been studied.
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