was carried out in an immersion instant freezer equipped with quaternary refrigerant (including 17.2 mol/L alcohol, 13.5 mol/L propylene glycol, 0.7 mol/L sodium chloride and pure water) and a jet agitation regulator device.
was carried out in an immersion instantfreezer equipped with quaternaryrefrigerant (including 17.2 mol/L alcohol, 13.5 mol/L propyleneglycol, 0.7 mol/L sodium chloride and pure water) and a jet agitationregulator device.