The disc assembly maintains contact with the guides through the full valve stroke.

这个阀瓣总成在阀门全行程中保持与导向装置的接触。

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The face seals provide constant guiding throughout the valve stroke, maintaining continuous contact with the gate.

在阀门闸板运动的全过程中，密封面都对闸板提供恒定的引导，保持与闸板连续稳定的接触。

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It introduces some advanced technologies which increase the charging efficiency, such as the variable length of the intake duct, the variable valve stroke, the variable valve timing and so on.

介绍了可变进气道长度、可变气门升程及可变气门定时等提高充气效率的先进技术。

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Known for its four-stroke 90-degree V-twin engines and its unique valve design, Ducati has carved out an impressive racing record, highlighted by its 2007 Grand Prix World Championship win.

WSJ: At the Heart of Ducati

The broad enthusiasm for TAVI (transcatheter aortic valve implantation) as it enters the marketplace has been partially offset by concerns about an increased risk of stroke associated with the procedure.

FORBES: Study Examines New-Onset Atrial Fibrillation After TAVI