burner spiral case 燃烧器蜗壳
spiral case nose 蜗壳鼻端
semi-spiral case 不完整式蜗壳
welded spiral case 钢板焊接蜗壳
spiral case man door 蜗壳进人门
spiral case and stay ring 蜗壳座环
spiral-case manhole 蜗壳进人孔
Meanwhile, the far-ranging application of spiral case of cushion layer is the requirement of development in Chinese hydroelectric power station construction.
根据我国的国情,大力发展垫层蜗壳是非常必要的,具有重大的实际意义。
参考来源 - 水电站垫层蜗壳数值模拟方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The variational analysis of spiral case and stay ring's strength.
蜗壳座环强度的变量化分析。
Backwater hole and then right to the water flow convergence, the flow along the spiral case.
然后与右回水孔流来的水汇合，顺着蜗壳流动。
The ellipse section spiral case can give excellent hydraulic performance by optimizing design.
通过优化设计，椭圆型蜗壳可获得优异的水力性能。
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