The application of ultrasonic in the sewing industry mainly reflects the two major functions of ultrasonic: welding and cutting. In 2019, for masks that are popular all over the world, ultrasound is a household name for applying these two functions to the fullest. The cutting and welding of velvet c
Currently, research on the extraction of antioxidants and anti-aging drugs from natural products has attracted widespread attention from domestic and foreign scholars. Considerable research results have been achieved in this field, and based on comprehensive domestic and international research repor
Currently, research on the extraction of antioxidants and anti-aging drugs from natural products has attracted widespread attention from domestic and foreign scholars. Considerable research results have been achieved in this field, and based on comprehensive domestic and international research repor
Currently, research on the extraction of antioxidants and anti-aging drugs from natural products has attracted widespread attention from domestic and foreign scholars. Considerable research results have been achieved in this field, and based on comprehensive domestic and international research repor