WEST INDIAN WORM SHELL蚯蚓锥螺
SCALY WORM SHELL大蛇螺
worm shell of fan风机蜗壳
In the paper, the author excavated the performance, calculated the velocity-pressure and flow loss of the worm shell, the outlet element of the pump.
论文还深入研究了螺旋型离心泵的蜗型扩散管的结构和原理，计算了蜗型管的速度、压力、流动损失，分析了扩散管的增压原理。
参考来源 - 某型航空螺旋离心泵性能计算研究