... two-piece step type buffer seal；组合式阶梯型缓冲器密封 two-piece tube；两节组合管 two-piece unit；两件组合单元 ...
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The position of the sleeves is located in the middle between the arrowheads on the connector tube and the two circumferential grooves on the socket piece of the catalytic converter.
连接套位于接头管上的箭头与催化转化器套筒上的两个圆周凹槽的中心位置。
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