The wires, element leads, connection terminals to be welded and printed circuits should be treated clean and kept their weld ability.

清洁处理 （Cleaning treatment）待焊的导线、 元器件引线、接线端子及印制电路板均应进行清洁处理，并保证其可焊性。

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The wires, element leads, connection terminals to be welded and printed circuits should be treated clean and kept their weld ability.

清洁处理 （Cleaning treatment）待焊的导线、 元器件引线、接线端子及印制电路板均应进行清洁处理，并保证其可焊性。

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