Both the physical and biologicalcontainment systems are divided into different levels.
物理和生物遏制分为不同的水平。
2
Biologicalcontainment refers to measures genetically built in to a recombinant molecule or its propagating host for the purpose of limiting its chance of survival outside the laboratory.
生物遏制是指用基因手段构建重组分子或增殖载体，目的是为了控制其在实验室外生存的机会。
3
In the event of the intentional release of a biological agent these activities would be vital to effective international containment efforts.