Porcine streptococcal disease is a general term for a variety of diseases caused by several serogroups of streptococcal infections. Acute is often hemorrhagic sepsis and encephalitis; chronic is characterized by arthritis and endocarditis. The disease has occurred in many areas of China, an…
…
Genetically modified foods refer to a group of foods that are processed and produced using genetically modified organisms as raw materials. Genetically modified organisms (GMOs) are biological species that have been transformed in accordance with human expectations using modern biotechnol…
According to the Central Meteorological Observatory: At present, the precipitation intensity in Huaxi is obviously weakened, and the process of heavy precipitation is basically over. It is estimated that from 20 to 22, there will be small to moderate rains in the southeastern part of the no…
51 steel pipe network commentary: seamless steel pipe knowledge.
Seamless steel tubes: Seamless steel tubes are made by punching a steel ingot or a solid tube and then hot-rolled, cold-rolled, or cold drawn. The specifications of the seamless steel pipe are expressed in terms o…
In 2003, the Canadian mad cow disease shocked the world and once again pushed human survival and health issues to the major issues of the world's disease. It even had a major impact on the world economy, politics, and society. However, recently scientists have developed reprocessed pl…