... security valve 安全阀 segment valve 弓形阀 segmental valve 扇形阀门 ...
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valve-bearing vein segment 带瓣静脉段
The Lunar Ball Segment valve has a full-bore opening where material cannot build up, accumulate, or be captured within the valve body.
采用全径开口设计，这样，材料不会堆积或粘连在阀体上。
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