翼穴 [
yì xué]
[解剖] pterion
- 穴鸟和乌鸦振翼徘徊。
Where the jackdaws and ravens flutter. - 通过平衡阀瓣及其“翼型”结构,将水头损失(或位差损失)降到最小程度。流线型阀体,不再需要凹穴来帮助流体直线流通。
Loss of head is minimized by the balanced disc and its "aerofoil" design. Streamlined body without pockets contributes to straight-through flow.
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