| 1. | It had become of major importance as a pathogen .
它已成为极其重要的病原菌。 |
| 2. | At least one avian disease pathogen has been found .
已经发现至少有一种禽病的病原体。 |
| 3. | The pathogen load of a given sewage varies from one community to the other .
污水中的病原体含量因不同的社区而异。 |
| 4. | The action of a pathogen and an insect vector changed the ecology of the rabbit .
病原体和昆虫媒介改变了兔子的生态学。 |
| 5. | One must be concerned about the fate of these pathogens in the absorption field .
必须注意到这些病原体在吸收场地的归宿。 |
| 6. | A basic dichotomy in epidemiology is whether a pathogen is residual or continental .
流行学中一个基本的区分是，病是残留的还是大区的。 |
| 7. | Nonexposure of susceptible plant populations to their pathogens is fairly common .
感病的植物群体不暴露在它们的病原之下，这是相当普遍的。 |
| 8. | Without competition from other organisms, the pathogen may grow very rapidly with serious damage .
没有其他生物的竞争病原生长迅速，危害严重。 |
| 9. | Many high-yielding crops have been found to be particularly susceptible to insects and pathogens .
人们发现许多高产作物对害虫和病原菌特别敏感。 |
| 10. | Furthermore, there are far more healthy carriers of enteric pathogens than frank clinical cases .
而且健康的肠道病原菌携带者又比明显的临床患者多得多。 |
