无特定病原体动物(specific pathogen free animal，SPF)： 除清洁动物应排除的病原外，不携带主要潜在感染或条件致病和对科学实验干扰大的病原。
基于20个网页-相关网页
无特定病原体动物 Specific Pathogen Free ; specific pathogen free animal ; Specificpathogenfreeanimal SPF
特定病原体动物 specific pathogen free animal ; SPF ; specific pathogen free
无特殊病原体动物 Specific pathogen free animals
特定病原体动物级 specific pathogen free ; SPF
炭疽无物定病原体动物 specific pathogen free animal
无特异病原体动物 specific pathogen-free animal
定病原体动物 Specefic pathogen free animals
无特定病原体动物级 specific pathogen free
动物无特定病原体动物 Specific pathogen free animal
较长期的气候变化可影响生态系统的生存能力和健康，使植物、病原体、动物、甚至人类住区的分布状况发生变化。
Longer term changes in climate affect the viability and health of ecosystems, influencing shifts in the distribution of plants, pathogens, animals, and even human settlements.
布克曼认为，减少对化学物质的依赖也是部分的解决之道，因为为了对抗环境病原体的侵入，所有动物的免疫系统都要保持最佳状态。
Reduced reliance on chemicals in agriculture is part of the solution, says Buchmann, since all animals need their immune systems in top shape to combat pathogens in their environment.
在铁匮乏的情况下，小鼠和大鼠(也许可外延到人类)的动物体比病原体更能有效地获得营养物。
In situations where iron is scarce, the bodies of mice and rats (and presumably, by extension, people) seem able to collect the nutrient more efficiently than pathogens do.
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