China's Laos to Collaborate on the Study of Medicinal Plants

A few days ago, Kunming Institute of Botany, Chinese Academy of Sciences, and the Lao Traditional Medicine Research Center will conduct phytochemical research on medicinal plants of common interest and sign a technology cooperation agreement in Kunming, Yunnan Province.
According to the ag.......

The first domestic float automatic exhaust valve has been patented

Over the years, the massive loss of hot water during the heating period has been a big headache for the northern urban heating sector. According to the actual investigation, it shows that the heat supply capacity per hour for a thermal power plant is 8000t, the water loss per hour is 500t, the .......