在中国工程院院士、预防医学和职业病防治领域的学术带头人何凤生教授的日历上，几乎没有星期天和节假日，多年来，她下班的时间总与办公大楼晚间闭楼的时间一致。作为国际知名学者，尽管国际学术活动、科研工作和社会活动占据了她的很多时间，但她却从不忘记去工厂车间为工人 On the calendar of Professor He Fengsheng, an academic leader of the Chinese Academy of Engineering, professor of preventive medicine and occupational disease prevention, there are few sundays and holidays. For many years, her get off work time has always been in line with the closing time of the office building at night. As an internationally renowned scholar, she has never forgotten to go to the factory floor for workers, despite the fact that international academic activities, scientific research and social activities take up a lot of her time