What is zheng (zhēng)? What are the characteristics? What is the main function? There is a record of "zheng (zhēng)" in the masterpiece "Shuowen Jiezi" by Xu Shen, a scribe and philologist in the Eastern Han Dynasty. The text says: "Zheng (zhēng), nao (náo) also, like a bell, the handle goes up and down." "Náo (náo), Xiaozheng (zhēng)." According to this argument, zheng (zhēng) is simi...