Surroundings in which an organization operates, including air, water, land, natural resources, flora, fauna, humans, and their interrelation.
组织作业所在的周边环境，包括空气、水、土地、自然资源、植物、动物、人类，以及其间的互动关系。
2
Result the flora number in air before and after ultraviolet disinfection had statistical significance, while the flora number in the surface of air-condition's filter had no statistical significance.
结果紫外线消毒前后，手术室空气菌落数的差异有统计学意义，空调滤尘网表面菌落数的差异无统计学意义。
3
Conclusions Diet was one of the main causes of intestinal flora changes in air force pilots.