The sealing principle of sealing cavity in single thread twin screw pump is the same as that in double thread twin screw pump.
单头双螺杆泵与双头双螺杆泵密封腔的密封原理相同。
The labyrinth seal of taper bush changes the structure of the sealing cavity so that solves the seal problem of the feeder effectively.
迷宫锥型套密封技术通过改变密封填料函的结构，有效地解决了加煤机轴密封技术问题。
The box type structure, cavity cannot antirust paint corrosion, in order to prevent moisture intrusion corrosion beam cavity, sealing the inner cavity of the main girder must keep.
箱型结构的主梁，内腔无法涂漆防锈蚀，为了防止水汽侵入腐蚀主梁内腔，必须保住主梁内腔的密封性。
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