The roble had hit a record low after the West imposed sweeping sanctions on Russia for its aggression in Ukraine. Russia's president recently ordered exports of Russian gas to "unfriendly" countries to be settled in robles. The speaker of Russia's up…
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…
A cement foaming agent based on animal protein is made mainly from keratin proteins from the horns. This causes it to have an unpleasant odor. Coproduct, which is the product of several chemical reactions and physical treatments, can be described as…
According to the different molecular structure, it can be divided into four generations of polycarboxylate series superplasticizer, the first generation is acrylic acid copolymer, the second generation is propylene ether type, the third generation is…
What does sodium silicate Powder mean? The molecular form of sodium silicate (also called sodium silicate), is Na2O.nSiO2 *xH2O. Properties of sodium silicate depend on the molecular ratio of silica to sodium oxide. The modulus of this ratio is known…
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