Authority work is very important part of library cataloguing work.
规范工作是图书馆编目工作中非常重要的一部分。
Refer - Portuguese railway infrastructure authority WORK PERFORMED: New railway equipment fabrication and inspection of railway cars, PORTUGAL.
葡萄牙铁路基础设施管理局所做工作业绩：在葡萄牙，新铁路设备的制造以及对火车车厢的检测。
Refer - Portuguese railway infrastructure authority WORK PERFORMED: New railway equipment fabrication and inspection of railway cars, PORTUGAL.
葡萄牙铁路基础设施管理局所做工作业绩：在葡萄牙，新铁路设备的制造以及对火车车厢的检测。
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