반응형 WaterSources1 [Water Use and Management ] 역사적인 시대의 물 공급: 되돌아보기 [Water Use and Management ] Water Supply in Historical Times: A Look Back (역사적인 시대의 물 공급: 되돌아보기) Water has always been a vital resource for human survival, and throughout history, people have found different ways to access and supply it. In this article, we will take a look back at the water supply systems that were used in historical times and how they have evolved over time. (물은 항상 인류의 생존에 필수적.. 2023. 4. 5. 이전 1 다음 반응형