The graphite molded packing, the asbestos thread PTFE-greased braided packing and the carbon-fibre braided packing were tested and the coefficients of a cycle ring were experimentally determined.

以膨胀石墨模压成型填料、石棉线浸渍聚四氟乙烯编织填料和碳素纤维编织填料为试验样品，实验确定了单圈填料的侧压系数。

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An air conditioning scheme is the whole design and installation hvac system in the life cycle of the most key ring, follow-up work is an important guarantee the smooth.

暖通空调方案设计安装是整个暖通空调系统生命周期中最为关键的一环，是后续工作顺利进行的重要保障。

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It's the beginning of his Ring cycle and we're going to listen to this.

我们将要听的是开头部分。

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It's the beginning of his Ring cycle and we're going to listen to this.

我们将要听的是开头部分。

耶鲁公开课 - 聆听音乐课程节选

The respected Zambello is currently directing a new production of Wagner's Ring cycle for the San Francisco Opera.

BBC: Francesca Zambello and Placido Domingo

As Mr. Lepage did with the Ring Cycle, Mr. Counts fatally relies on the wow factor of technology and forgets about the people.

WSJ: Still Searching for the Promised Land | Moses in Egypt | New York City Opera | Opera Review by Heidi Waleson

The Proms will celebrate the 200th year of Wagner's birth with performances of his Ring cycle by Staatskapelle Berlin, conducted by Isreali-Argentine Daniel Barenboim.

BBC: Proms appoints first female director for Last Night