The forming technology and the forming die of each working process for the closing ring were analyzed.

分析了卡圈成形工艺及各单工序成形模具特点。

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Alongside, the chemical reactions for the key steps in this synthesize process i. e, the condensation, decomposition, ring-closing, separation, etc. are given.

给出了合成过程中缩合，分解、闭环，离析等关键步骤的化学反应；

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The five quinazoline compounds were prepared by using 2 amino 4,5 dimethoxy benzoic acid as original material, which underwent ring closing, halogenation and substitution.

方法：以2 氨基4 ，5 二甲氧基苯甲酸为原料，分别经过环化、氯代、取代等反应，合成了五种目标化合物。

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Lord Attenborough paid tribute to Closing the Ring's "wonderful cast", singling out west Belfast actor Marty McCann.

BBC: Gala opening for Ring movie

After filming Closing the Ring, McCann won one of the lead roles in the sequel to the hit television series Band of Brothers.

BBC: Gala opening for Ring movie

Closing down the ring with quick footwork, Khan kept up the pace and Kristjansen's face was reddening with the blows as he found it difficult to keep out of range.

BBC: Khan stops Kristjansen in seven