The Beijing Municipal Bureau of Cultural Relics announced the latest progress in the archaeological excavation of the Daxing Sanhezhuang cemetery yesterday. After 7 months of exploration and nearly two and a half months of excavation, archaeologists unearthed 129 ancient tombs fro…
Recently, researchers at the University of Manchester have proposed a low-cost method for producing graphene printed electronic products, which can greatly improve the production efficiency and reduce the cost of conductive graphene inks.
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Soil remediation is a technical measure to restore contaminated soil to normal function. In the soil remediation industry, there are more than 100 existing soil remediation technologies and more than 10 commonly used technologies, which can be roughly divided into three methods: …
Some people always think that there is no difficulty in the operation of the sprinkler , as long as the switch is turned on to run on the road, but it is easier said than done, sprinkler is not so simple op…