valve seat bore
... 阀座 valve seat 阀座内径 valve seat bore 阀座积炭 valve seat carbon deposit ...
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当阀体分开时， 弹性阀体阀座的 边缘应该朝向阀门内径弯曲。
The end flaps of the elastomeric seat should be flexed downward toward the valve I. D. as the body halves are being separated.
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