Ring-Mounting machine is mainly used for mounting the reference-positioning ring to the tool and removing the ring from it on numerical controlled drill, fraise machine for etched circuit card.

装圈机主要用于印制电路板数控钻床，铣床加工刀具装上，卸下基准定位环只用。

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The method additionally includes the steps of wrapping a seal about a joint formed between the first and second ductwork components and positioning a ring clamp about the seal.

该方法另外还包括将密封包围在形成于第一和第二管道系统部件之间的连接部周围并且将环形夹具放置于此密封的周围。

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By analyzing the localization of cut in processing poston ring, this paper determined a new processing method for poston ring, which has high positioning accuracy and high production efficiency.

通过对活塞环加工过程中开口准确定位问题的分析，确定了一种定位精度高、生产效率高的加工工艺。

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When Labour lost the May 2010 election, the years of speculation and positioning finally came to fruition, as he became the first Labour MP to throw his hat into the leadership ring.

BBC: The David Miliband Story