Controlling Microorganisms By Physical Agents ■ High Temperature ■ Radiation辐射 ■ Filtration过滤 ■ LOW Temperature Desiccation干燥Controlling Microorganisms By Physical Agents ◼ High Temperature ◼ Radiation 辐射 ◼ Filtration 过滤 ◼ Low Temperature ◼ Desiccation干燥