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…
Recently, covid 19 outbreak spreads in Shanghai, China. There are more than 25,000 new asymptomatic domestic infections every day. China is implementing a dynamic zero-out policy. A leading respiratory expert said the key to COVID-19 prevention and c…
Foam concrete is a highly workable low-density material containing up to 80% air.…
The European Union is seeking to boost energy cooperation with African countries to help wean them off dependence on Russian gas imports.Bloomberg said, recently, according to a draft EU file, African countries, especially in western Africa Nigeria,…
Bismuth sulfide is a chemical substance with the molecular formula Bi2S3, insoluble in water, toxic, weakly radioactive, and harmless to the human body. For the preparation of bismuth compounds. Bismuth sulfide is an important semiconductor material.…
Amorphous boron powder is a black or dark brown powder and is an important energy material. Amorphous boron powder is widely used in metallurgy, electronics, medicine, ceramics, nuclear industry, chemical industry and other fields.…
In this article, we will talk about the problems when water reducer meets different kinds of cement and solutions.…
Aluminum boride AlB2 powder is an ionic compound with a hexagonal crystal structure, which can be used as: non-toxic flame retardants, plastics, rubber, textiles, coatings, superconducting magnets, transmission lines, sensitive magnetic field detecto…
The purchasing pace at the demand end of the international thermal coal market continues to slow down and the international thermal coal price continues to decline. Prices for thermal coal at major international ports continued to fall last week as b…
It is reported that t he price of European natural gas futures exceeded US$3,000 (about 18,956 yuan) per 1,000 cubic meters for the first time, setting a new record again. European natural gas futures surged to $2,500 per thousand cubic meters, while…
Xiaomiextends the life cycle of mobile phones ; what kinds of effects will this bringto hot plate machine for repairs industry? AfterXiaomi moves towards internationalization, there are still users who havedoubts about the update of its mobile phone…
The US economy is never going back to ‘normal’ New York (CNN Business) The U.S. economy has come a long way since last years devastating recession. But a return to " normal " may not be possible. The " back-to-normal " Index, comp...…