Through renewing design clew and optimizing die structure and performance, acquire a better production effect.
更新设计思路，优化模具结构及性能，取得更佳的生产效果。
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。
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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