The Federal Communications Commission approved Boeings satellite Internet project, which was first proposed in 2017.Boeing can now make progress in building, launching，and operating its broadband Internet network in space.It will join Spa…
What is foaming agent?The foaming agent is an indispensable component in the preparation of foam concrete by using prefabricated foams. This study used four types of foaming agents to prepare foam concrete. Effect of the foaming agent on the properti...…
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…
What is silicon carbide? Is silicon carbide natural? It is a rare form of silicon carbide. Moistanite, a rare and valuable mineral, also has silicon carbide. The most commonly used and most economically viable non-oxide high tech refractory material...…
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