"Except for the sales of shield tunneling machines engaged in tunnel engineering, the sales of other metallurgical, mining, building materials, coal and other equipment in China have all declined, and market demand has decreased by 60% to 70%." said the relevant person in charge of a heavy

China's agricultural resources and environment are facing dual pressures of exogenous and endogenous pollution, and sustainable agricultural development is facing bottlenecks. In this context, the Ministry of Agriculture stated yesterday that the use of fertilizers and pesticides should be reduc

Desalinated water is water that removes or reduces strong electrolytes that are easy to remove to a certain extent. The remaining salt content in the desalinated water should be between 1-5 milligrams per liter.Method for preparing desalinated water:① Distillation method involves heating and evapor

China Environmental Protection Online Wastewater Treatment has invested over 114 billion yuan, which is the total amount of investment from 36 key cities in the past year for the treatment of black and odorous water bodies. In the next two years, the "hat removal" action with stricter regu