Multiple V-ring packing, combined with live loading, maintains packing compression under high-cycle and severe service applications.

多重V形环填料，组合动负载，维护填料压缩，适用于使用频率高，环境严酷的应用场合。

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Influence of rare earth elements on high-cycle fatigue properties of AZ91D alloy was investigated and the fatigue fracture morphology was also analyzed.

研究了稀土元素对AZ 91 D压铸镁合金高周疲劳性能的影响，并对疲劳断口的组织形貌进行了分析。

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The high cycle rate of the valves, and the abrasive nature of the quartz powder require an abrasion resistant valve that will last.

由于阀门使用的高频率，以及石英粉末的研磨特性，都要求耐磨性很高的阀门才经受得起。

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And, according to figures collated by the Times - which has run a high-profile cycle safety campaign since one of its reporters was hit by a lorry and left in a coma - 104 cyclists have been killed so far this year.

BBC: Is cycling getting more dangerous?

"The financial instruments for the high-tech market cycle don't work as well in cleantech, " says Cleantech Group Managing Partner John Balbach.

FORBES: Magazine Article

Natural gas emits 29% less carbon dioxide than oil and 45% less than coal, and it can be used in high-efficiency combined cycle power stations.

FORBES: Big Oil's Hydrogen Future