Providing excellent sealing characteristics in a broad range of applications, Quad-Ring? seal's are available in a full range of standard sizes.

本公司生产所有标准型号的星型圈，具有出色的密封特性，适用范围广。

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The first layer of leather surface accompanied by adequate supporting ring in providing excellent fit, seamless toe structure, fit and ventilation is good, durable wear.

头层皮鞋面配以中足支撑环提供出色的合脚性，无缝鞋头结构合脚且透气性好，经久耐穿。

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The results show that water solubility and water dispersion stability are excellent when the mass fraction of GMA is 15%, the amination ring-open is 50% and neutralization is 80%.

结果表明：甲基丙烯酸缩水甘油酯（GMA）含量为15%，胺化开环量为50%，中和度为80%时，树脂的水溶性及水分散体系稳定性均良好。

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The Cuban had killed two men in the ring - including the excellent former champion Davey Moore in their title bout - though the belief was growing that Ramos had passed his peak.

BBC: 5. Howard Winstone

As boxing legend Mohammed Ali demonstrated, dancing in the ring can help to win you fights and Calzaghe is an excellent exponent of the art.

BBC: Weighing up Joe's dance chances

Vines was axed at the end of October, but with Crawley boasting great potential and excellent playing and training facilities, Hollins was quick to throw his hat into the ring.

BBC: SPORT | Football | My Club | Crawley Town | Hollins relishes new Crawley test