China's machinery and equipment exports maintained a trend of simultaneous growth in quantity and quality in 2025. Mechanical and electrical products achieved remarkable performance in both export scale and growth rate, driven significantly by high-end upgrading and emerging markets. The annual e

With the growth of industrialization, more and more factories produce more and more harmful substances; As well as the continuous increase of China's population, tens of thousands of cars and buses are running every day, emitting a large amount of carbon dioxide and other harmful gases and particles

According to the document "guidelines for health protection of air pollution (haze) population", it is suggested to install air purifiers in kindergartens, primary and secondary schools, offices, indoor fitness places and other indoor places; If possible, the central fresh air system can be used to

As summer approaches and the college entrance examination is approaching, a five-year "warm classroom" renovation project has recently been launched to make the learning environment more comfortable for children. The reporter learned from the Municipal Finance Bureau on June 2 that in the next five