单词 | viscous impingement filter |
释义 | viscous impingement filter [`vis·kǝs im`pinj·mǝnt ´fil·tǝr] ENGINEERING A filter made up of a relatively loosely arranged medium, such that the airstream is forced to change direction frequently as it passes through the filter medium; the medium usually consists of spun-glass fibers, metal screens, or layers of crimped expanded metal whose surfaces are coated with a tacky oil. |
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