The air shower also works as an airbreak, keeping unclean air away from the clean area.
风淋室又可起到气闸的作用，阻止未经净化的空气进入洁净区域。
2
Simplified design: Vacuum breakers and contactors are simpler in design than original airbreak devices.
被简化的设计：真空破碎机和接触器是简单在设计比原始的空气断裂设备。
3
As I sat on the park bench enjoying the cool night air and gazing at the people who were taking a break from the rest of the world, two young lovers passed me by.