吃掉
发表于 2025-3-28 15:24:41
Sandeep Kumarl. 1986). The earliest documented sewage farms were those of Bunzlau, Germany, and Edinburgh, Scotland, which were in operation in 1531 and around 1650, respectively. Many other farms, such as those in London, Paris (1868), Berlin (1876) and Melbourne (1897), were established later. Sullivan et al.