Fingertip pulse oximeter was invented by Millikan in the 1940s to monitor the concentration of oxygen in arterial blood, an important indicator of the severity of COVID-19. Yonker now explains how ...
UV phototherapy is 311 ~ 313nm ultraviolet light treatment.Also known as narrow spectrum ultraviolet radiation therapy ( NB UVB therapy ).The narrow segment of UVB: the wavelength of 311 ~ 313nm ca...
In order to explore a new management model, strengthen the company’s on-site management level, and enhance the production efficiency and brand image of the company, on July 24, the launch mee...
In order to further strengthen the political and ideological construction of Yonker Group cadres, and improve management capabilities. At the same time, in order to ensure the smooth development of...
