spiral casing

常见例句

This paper summarizes soft development and technology of spreading of elliptical spiral casing based on approximate elliptical spiral casing(major and small circle casing).
主要介绍椭圆蜗壳按近似椭圆蜗壳（即大小圆蜗壳）展开的软件开发与制作工艺过程。
T_type spiral casing was applied in lots of Kaplan turbine. It is impossible to make very good flow pattern in inlet of stay vane only by means of changing geometry of spiral casing.
绝大多数轴流式水轮机的蜗壳为不完全包角的T型蜗壳，仅通过对蜗壳的几何形状优化而实现沿固定导叶进口圆周均匀供水或速度分布均匀几乎是不可能的。
Concrete stresses in the axial direction of the spiral casing are relatively uniform dispersed tensile stresses, the maximum axial stress occurs in the thinnest section of surrounding concrete.
沿蜗壳轴线方向的应力为相对均匀的拉应力，最大拉应力出现在外围混凝土厚度最薄的部位。