balanced disc meaning in English

平衡轮
平衡盘

Short distance of travel , combined with a balanced disc allows rapid closure while minimizing slamming
行程更短，结合平衡阀瓣的优点，阀门的关闭更加迅速，最大限度减小撞击现象。
Loss of head is minimized by the balanced disc and its " aerofoil " design . streamlined body without pockets contributes to straight - through flow
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。