The foot portion at its engagement surface has an axial length.
足部在其接合表面处具有轴向长度。
The inner foot portion at its engagement surface has an axial length.
内足部在其接合表面处具有轴向长度。
The front piece includes a foot portion defining an axially extending engagement surface for interference-fit engagement with the annular surface of the seal ring.
前件包括限定与密封环的环形表面干涉配合式接合的轴向延伸的接合表面的足部。
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