Collectors (pipes that consist of concentric tubes with different inner diameters for supplying and extracting UF6 gases) 收集器(由内径不同的同心管组成用于供取UF6气体的管件),
Diffusion rooms (airtight containers with one inlet and two outlets intake for holding air diffusion membrances) 扩散室(专门设计或制造的密闭式容器,用于容纳气体扩散膜,由耐UF6的材料制成或用这种材料进行保护。),