When the air fills the entire tooth ditch, air admission of side end surface extension the rotor has left air inlet of the cabinet, namely is sealed up air in the tooth ditch's between.
当空气充满整个齿沟时，转子之进气侧端面转离了机壳之进气口，在齿沟间的空气即被封闭。
When the air fills the entire tooth ditch, air admission of side end surface extension the rotor has left air inlet of the cabinet, namely is sealed up air in the tooth ditch's between.
当空气充满整个齿沟时，转子之进气侧端面转离了机壳之进气口，在齿沟间的空气即被封闭。
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