| 1. | Nothing availed against the flood .
什么都无助于防治这次洪水。 |
| 2. | This was a drastic step in disease control .
这是疾病防治中一个强有力的步骤。 |
| 3. | The records provide a guide for timing control measure .
这些记录可作为适时采取防治措施的指南。 |
| 4. | Are exotic pests more easily controlled than indigenous pests ?
外杂害虫比本地害虫更容易防治吗？ |
| 5. | Similar approaches have been used against helicobasidium mompa .
同样的方法也曾用于防治桑卷担菌。 |
| 6. | Insecticides are widely used for controlling most insect pests .
杀虫剂广泛应用于防治大多数害虫。 |
| 7. | Finding a vaccine for plasmodium has been an elusive goal .
寻找防治疟原虫的疫苗，一直是个难于达到的目标。 |
| 8. | Are sedentary pests more easily controlled than the active pests ?
固定生活的害虫比活动的害虫更容易防治吗？ |
| 9. | The mention of control methods is solely for the information of readers .
所提及的防治方法只是为读者提供资料。 |
| 10. | Rarely can permanent control be achieved by a single application of spray .
使用一次药剂防治难于持久地控制害虫。 |
