... 组合式踏综盘 built-up tappet 盘簧组合 disc spring assembly 视场光阑-调制盘组合 sield-stop reticule combination ...
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spring disc assembly 弹性盘总成
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The parallel seat gate assembly consists of two interchangeable spring loaded discs, a fully guided disc carrier, and retaining pins.
平行阀座闸阀由两个可互换弹簧负载阀瓣，一个全导向阀瓣托架和扣环销钉构成。
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