④平板涂布分离法( Spread Plate) Liquid specimen is spread on the surface of solid agar with a sterile bent glass rod. 简单易行,但易造成机械损伤④平板涂布分离法（Spread Plate） 简单易行，但易造成机械损伤 Liquid specimen is spread on the surface of solid agar with a sterile bent glass rod