以下为句子列表：
英文: （DDX auto pinning machine is used to make reference positioning pin prior to drill the laminated plates of etched circuit card on drill machine to ensure that the numerical controlled drill machine for etched circuit card can manufacture premium puoducts.
中文: DDX全自动钉销机用于印制电路叠层板在印制电路板数控钻孔前钻作基准定位销钉，从而保证印制电路板床能加工出高品质的产品。
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