Proper surveillance followed by killing infected animals or animals at risk, movement control of animals and biosecurity on farms is essential to get the disease under control.

首先采取适当的监测行动，然后将病猪或有患病危险的猪扑杀，对猪的移动进行控制并对养殖场采取生物安全措施是控制这一疫病的关键。

youdao

But all evolution change of phenomenon catching and killing completely, old leftovers of stage, often in order to form the essential factor at new stage.

然而一切进化现象的变革不是截然的生与灭，旧阶段的残留物，常为构成新阶段的必要因素。

youdao

Conclusion: the plant compound essential oil fumigation has certain killing effect on the bacteria on nutrient AGAR plate.

结论，该植物复方精油熏蒸法，对营养琼脂平板表面上细菌具有一定杀灭作用。

youdao

The war has swung back and forth across Dinka land, killing off trade and access to essential goods and eroding their capacity to survive hard times.

ECONOMIST: Hunger is a weapon in Sudan��s long, cruel war