He visited foreign aluminium plants,research institutes and universities hence got acquainted with some internationally famous scholars,especially Professor Kai Grjotheim (Norwory).

  • 他访问过挪威、新西兰、美国、日本和俄罗斯诸国的炼铝厂、研究所和大学,结识了多位国际上著名学者,特别是挪威的凯.;格罗泰姆教授
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