The containmentbarrier material consists of a filter fabric composed of woven polypropylene which allows the passage of water, but retains soil particles.
栅栏材料包括由聚乙烯织布制成的过滤布，允许水通过，但是会留住土粒。
2
Biosafety cabinets (BSC) is the primary containmentbarrier. It is very important to choose suitable control method for the protection ability of biosafety cabinet.
生物安全柜是重要的一级屏障设备，适当的控制方式对生物安全柜的防护能力是很重要的。
3
A carbon steel liner is utilized to provide a leak proof vapor barrier for containment of concrete construction.