English
简体中文
繁體中文
Français
Español
عربي ،
русский язык
Português
Deutsch
In ancient times, the working people of our country invented the water wheel as an irrigation tool, which embodies the creativity of the Chinese nation, provides witness to China's agricultural civilization and water conservancy history research, and lays the foundation for people's livelihood and social harmony and stability. As an ancient timing device, the hourglass made people's lives more regular and allowed time to be more fully utilized.
So strong
666think alike