Plain Ring and Snap Gages for checking the major diameter.

普通环规与卡规是为了检测大径。

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Checking the abrading of piston ring and cylinder slecve condition and air cyclo - tie is burnt or splits a condition;

检查活塞环与汽缸套的磨损情况及气环结焦或断裂情况；

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As for the highlights, I loved checking out the animals and watching the King's Troop and the Kangaroo Kid performing in the main ring.

BBC: NEWS | UK | Wales | Mid | Royal Welsh - live and undercover