2000年1月2日,四川水利界一位博学深思之士郎重鸣高工离开了人间。由于我们共同工作过15年,特别是我在拱坝结构计算方面,向他学到了很多精髓,他的去世使我万分悲痛。为了把他的治学精神和学术造诣传之后世,想尽我所知写一些点滴。我对郎工的印象是,为人好学不倦,从不自以?.. January 2, 2000, Sichuan Water Conservancy sector a learned Lang Langming senior engineer left the world. Since we worked together for 15 years, especially since I learned a lot about the structural calculation of arch dams, his passing made me extremely saddened. In order to pass on his scholasticism and academic attainments, try to write a little bit of what I know. My impression of Lang workers is that they are very hardworking and self-reliant.