Karl Heinz Rosenbrock has been the Director-General of the European Telecommunications Standards Institute, based at the ETSI Secretariat in Sophia Antipolis (South of France), since November 1990.是什么意思_Karl Heinz Rosenbrock has been the Director-General of the European Telecommunications Standards Institute, based at the ETSI Secretariat in Sophia Antipolis (South of France), since November 1990.在线翻译_英语_读音_用法_例句