On December 21, the commissioning ceremony of the Kovykta gas condensate field in Russia's Irkutsk region and the Kovykta-Chayanda section of the "Power of Siberia" gas pipeline was held simultaneously in several places in Russia. Russian President V…
On December 21, the commissioning ceremony of the Kovykta gas condensate field in Russia's Irkutsk region and the Kovykta-Chayanda section of the "Power of Siberia" gas pipeline was held simultaneously in several places in Russia. Russian President V…
It is reported that the Russian New Crown Virus Epidemic Prevention and Control Headquarters released a message on the 25th that based on the principle of reciprocity, Russia will resume international flights with Germany, Venezuela, Syria, Tajikista…
Foreign media said that the report made by Russia National Airlines said that General Manager of Russia National Airlines, General Manager of Russia, China National Airline Director Ke-Jian Zhang, signed the Memorandum of Understanding of the Federal…
Concrete is an indispensable raw material in the construction of construction projects. In the process of preparing concrete, in order to improve the performance of concrete, it is necessary to add water reducing agent after adding water, stone, sand…
An important compound of boron, boric acid, is often used in medicine and to kill insects. Boric acid can be used to disinfect the eyes, especially in middle and high school chemistry laboratories.…
Manganese III Oxide (or Manganese trioxide) is a white powder without odor. It's the main ingredient and an intermediate product in manganese compound. Insoluble in water and acetic acids, but soluble in ammonium chloride solutions. About Manganese…