swept-back vane 后弯式叶片
lean-back vane 后倾叶片
swept back vane 后掠式叶片
back-swept vane 后弯叶片
back of vane 叶片背面
back curved vane 后曲叶片 ; 离心压缩机的
back guide vane 后导叶
vane back 叶片背面
Vane Staggered Back 叶片交错回来
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；
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。
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