Back Vane 背叶片
back-swept vane 后弯叶片
swept-back vane 后弯式叶片
back of vane 叶片背面
back curved vane 后曲叶片 ; 离心压缩机的
Vane Staggered Back 叶片交错回来
lean-back vane 后倾叶片
swept back vane 后掠式叶片
back guide vane 后导叶
Li Caihui Solving method for development of back guide vane of the fan is introduced.
介绍了通风机后导叶展开的计算方法。
The only sound was a slight scraping noise from the rooftop, where the weather-vane swung back and forth.
整个谷仓里唯一的声音就是从屋顶传来的缕轻微的刮擦声，那儿有天气风向标在前后摆动。
Axial force is balanced by back vane or balanceable hole, for the specification with big radial force; we adopt double-wear passage design.
轴向力由副叶片或平衡孔平衡，对于径向力在的规格采取了双壳体设计；
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