27. 洁净室空气气流方式
A级和B级区域通常采用顶送底回Ceiling
FloorSupply Air
Return AirSupply Air
Return Air
28. Return Air洁净室空气气流方式
C级和D级区域通常采用以下两种方法:顶送顶回顶送侧回CeilingFloorSupply AirReturn AirCeilingFloorSupply Air Worst Case of Air
Flow Distribution
Worst Case of Air FlowDistribution