论文部分内容阅读
1920年5月7日,我国开通北京至天津往返航线,并在京津两地收寄航空邮件,为两地提供航空邮政服务,这是中国民用航空事业及航空邮政的开端。
On May 7, 1920, China opened the round-trip Beijing-Tianjin route and received air mail in both Beijing and Tianjin to provide air postal services to both places. This is the beginning of China’s civil aviation and aviation postal services.