表皮
The most common types of bacteria found in all the vehicles involved in the study, were Staphylococcus epidermidis, Staphylococcus aureus and Micrococcus luteus. 最常见的类型的细菌存在于所有的车辆参与了这项研究，是表皮葡萄球菌，金黄色葡萄球菌和微球菌。
