文章编号： KEY WORDS: cyclone; inlet duct layout; short inlet duct [gap=321]关键词：旋风分离器；入口烟道布置；短入口烟道
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short-S inlet duct 短S形进气道
The separation efficiency of the cyclone connected with the long inlet duct was higher than that with the short inlet duct.
在相同入口风速下，配长烟道的分离器分离效率比配短烟道的分离器分离效率高。
When the sending and exhausting shaft is ventilated, short duct flow may occurred between outlet and inlet, which will baffle air exchange in highway tunnel.
在竖井送排式通风时，排风口和送风口之间可能产生短道流动，这种短道流动会阻碍隧道内的空气交换。
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