Dulong-Petit's law

Zhang Huilan,Du Longyuan and Luo Aihua,three unmarried female sports activists,did an important contribution to the modern and contemporary Chinese women sports and set the characterized example in the modern and contemporary Tianjin sports history.

张汇兰、杜隆元和罗爱华是天津近现代体育史上的三位女体育活动家。