The spread of the novel coronavirus is taking a direct hit on the operations of airlines in Asia. About 500,000 flights taking off and landing in mainland China have been canceled since January, according to aviation information company Cerium. Touri…
Gazprom recently said it had completely suspended gas supplies to Bulgarian Gas company and Polish Oil and Gas Company (PGNiG) because it was not being paid in rubles. Russia said it would resume gas supplies after it agreed to pay for them in ruble…
With the wide application of polycarboxylate superplasticizer, the requirement of concrete early strength in practical engineering is more and more prominent, so the polycarboxylate superplasticizer has been the focus of research to meet the early st…
Local time Wednesday, the three major U.S. stock indexes closed down, the Dow fell 1.02%, has fallen for five consecutive trading days; The Nasdaq fell 3.18% and the S&P 500 fell 1.65%. Techn…
Europe's largest economy, Germany, recently activated an emergency plan to manage gas supplies that the natural gas could be rationed if supplies are disrupted or disrupted by a stand-off over Russian demands to pay for fuel in rubles. German Vice-C…
As a typical representative of refractory metal carbides, spherical tungsten carbide powder is suitable for 3D printing and can produce higher quality cemented carbide products.…
Where to use water reducer and how to use concrete water reducer properly would be talked about in this article.…
The price of modern coal chemical products in our district rose in April In April, the modern coal chemical industry in our district continued its positive development trend. The prices of 7 major types of modern coal chemical products monitored by t…
The application of Gypsum lightweight foaming agent celluarr concrete 26A. There are many types of conventional lightweight partition wall panels. Gypsum lightweight partition wall panels, as one of them, have many excellent characteristics. They are…
Recently, Germany put forward a new quantum research agenda, looking forward to the research focus and challenges faced by Germany in the field of quantum systems in the next ten years. The German Federal Ministry of Education and Research will then…