In the past, instructors and professors all handed original documents to the printing sections through the office of training materials, to be offset printed.
过去，讲师和教授都是将文件原稿通过培训材料办公室，交给印刷部门进行胶版印。
In the past, instructors and professors all handed original documents to the printing sections through the office of training materials, to be offset printed.
过去，讲师和教授都是将文件原稿通过培训材料办公室，交给印刷部门进行胶版印。
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