For instance, you should make sure that the insulations between the soldering tweezers and welding cable are ok and the earthing point and each termipoint of soldering machine are in good condition.
如
钳和接
绝缘是否有损坏地方，机外壳接地和机各接线点接触是否良好。
For instance, you should make sure that the insulations between the soldering tweezers and welding cable are ok and the earthing point and each termipoint of soldering machine are in good condition.
如钳和接绝缘是否有损坏地方，机外壳接地和机各接线点接触是否良好。
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