2003年是青莲师米七寿。半个多世纪前,我曾在清华大学化学馆的教室里听先生讲课,先生站在讲台上给我们这些学生的印象是严谨认真、一丝不苟。当时清华的老师都各有特性:张子高先生儒雅;高崇熙先生高效精确;黄子卿先生厚重凝实;马祖圣先生则一入教室就不再讲中文;冯新德先生是与时俱进,常带给学生最新的化学进展;博采各家之长,且学术生涯最长的则是张先生。先生年过耄耋又主持了元素原子量新值的测定工作,且不避繁琐,购置样品,制定研究方案,数据处理分析直至英文论文的撰写、打字、发送都必躬亲。90多 2003 is Qinglianshi Mi seven life. More than half a century ago, I had listened to my husband’s lecture in the classroom of the Tsinghua University Chemistry Center. The impression of those students who stood on the podium to us was rigorous and meticulous. At that time, Tsinghua’s teachers all had their own characteristics: Mr. Zhang Zigao was refined; Mr. Gao Chongxi was highly efficient and accurate; Mr. Huang Zhisheng was heavy and solid; Mr. Ma Zusheng no longer speak Chinese as soon as he entered the classroom; Mr. Feng Xinde kept pace with the times and often brought new students Of the chemical progress; Bocaizhuzhangzhu, and the longest academic career is Mr. Zhang. Over the years, Mr. President also presided over the determination of the new value of the atomic weight of the elements, and do not avoid the cumbersome, acquisition of samples, the development of research programs, data processing and analysis until the English papers writing, typing, sending all hands-on. More than 90