因此，双螺杆压缩机与蜗杆压缩机相比，在相同转速下单位内排气次数少，气流脉动大，气流噪声大。
Therefore, double screw compressor and worm compressor compared, in the same speed of the units inside less number of exhaust air ripple, big air flow noise.
螺杆和机筒罕有引起降解的，尽管排气口或复杂的混合段或复杂的屏障段的确会引起降解。
The screw and barrel rarely cause degradation, though vents or complex mixing or barrier sections may do so.
挤出机：平行双螺杆挤出机的特点以产量高，塑化优良。真空排气提高了产品的质量。它可以处理各种塑料。
Extruder: Parallel double screw extruder is characterized by high output and good plasticization. The vacuum exhaust improves products quality. It can process various sorts of plastic.
本发明的粉碎机包括主体、粉碎螺杆和排气通道单元。
The pulverizer of the present invention includes a main body, a pulverizing screw and an exhaust channel unit.
为提高塑化产量，采用双头机头机筒螺杆两道机筒进料口，都作了特殊设计，以便于吃料和排气，两道机筒都装在专用加料轴承座上。
In order to improve the plastification output, we adopt double-head of cylinder screw stem and two-feed chute. The two chute of the cylinder are both fixed on the special feed shaft stand.
公司专业生产活塞式、螺杆式系列空压机、交流系列电焊机、工业排气扇、电动机、型材切割机、空气净化器等系列产品。
We specialized in producing series of piston and screw air compressors, The AC welders, ventilating fans, electric motors, cutting machines, and purify machines etc.
公司专业生产活塞式、螺杆式系列空压机、交流系列电焊机、工业排气扇、电动机、型材切割机、空气净化器等系列产品。
We specialized in producing series of piston and screw air compressors, The AC welders, ventilating fans, electric motors, cutting machines, and purify machines etc.
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