马宁先生长期从事宽带数据网的技术研究、规划、工程管理等工作。
Mr. Ning Ma has devoted to the work of technical research, programming and engineering management on broadband data network for a long time.
马宁先生长期从事宽带数据网的技术研究、规划、工程管理等工作。
Mr. Ning Ma has devoted to the work of technical research, programming and engineering management on broadband data network for a long time.
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