... helical delay cable ==> 螺旋延迟电缆 helical fan ==> 螺旋风扇 helical fibre ==> 螺旋形光纤 ...
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helical coil steam generator fan 螺旋式通风机
The helical plate tooth threshing cylinder, the top thresh fan and the undershot fan are connected and driven by a vertical shaft.
该机以一根立轴联接螺旋板齿脱粒滚筒、上排杂风扇和下轴流风扇，并驱动其旋转。
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