How serious are fertility problems today? People don't want to give birth,can't afford it, and can't give birth that has become the "three mountains". The problem of childbirth is related to the people's livelihood. Whether a country can prosper or n
International oil prices extended their decline after comments from Federal Reserve Chairman Jerome Powell added to concerns that U.S. interest rate hikes will slow economic growth and data from the American Petroleum Institute showed U.S. crude inve
According to the real-time statistics of the world meter, as of around 6:30 on June 6, 2022, Beijing time, 535316817 cases of COVID-19 have been confirmed in the world, and 6320250 cases of death have been confirmed in the world. There were 317372 ne
What is Tungsten Carbide?As one of the main production raw materials of cemented carbide, the physic...
There are several kinds of water reducers: lignosulfonate, naphthalene sulfonate water reducing agent, polycarboxylate-based high-performance water reducing agent.
At 23:36 local time on the 16th (22:36 Beijing time on the 16th), a strong earthquake occurred in the waters near Fukushima Prefecture, Japan. Early this morning, the Japan Meteorological Agency revised the magnitude from 7.3 to 7.4. So far, the eart