The flexing action of the sleeve breaks up any sediment or build-up in the valve, which makes the Type a a reliable low-maintenance valve.
套管的弹性运动可以碎裂淤积在阀门内的任何沉淀物，这使得A型夹管阀成为一款可靠的低维护的阀门。
The flexing action of the sleeve not only unplugs the valve, but also breaks up the lime.
套管的弹性作用不仅不会堵塞阀门，还能够碎裂固化的石灰。
The flexing action of the sleeve not only unplugs the valve, but also breaks up the lime.
套管的弹性作用不仅不会堵塞阀门，还能够碎裂固化的石灰。
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