Fire Safe - Secondary metal-to-metal seal ACTS as backup if primary seal is destroyed by fire.
防火安全-如果第一个密封被火烧坏，则第二个金属对金属密封作为后备密封发挥作用。
The metal diaphragms act as the seal at the top of the valve. The primary improvement in this generation of valves is the elimination of the spring used to open the valve.
金属横膈膜在阀门的顶部作为密封。这一代阀门的主要的改进是取消了用于开启阀门的弹簧。
BVI Business Company formation, all primary documents and corporate seal.
英属维尔京群岛商业公司的形成，所有主要文件和公司印章。
With flow through valve, primary check opens away from diaphragm seal.
当有流体通过阀门时，第一阀瓣开启从隔膜密封上离开。
With flow through valve, primary disc opens away from diaphragm seal.
当流体通过阀门时，第一阀瓣开启，从隔膜密封上离开。
Because of the RCP be in primary circuit pressure boundary, LOCA accidents that may occur due to the seal failure.
主泵为核电厂一回路压力边界，可能由于密封失效发生LOCA事故。
Valves feature as standard secondary metal-to-metal seal in the event of the primary seat being destroyed by fire.
作为标准配置，阀门具有第二个金属对金属密封，以防万一第一个密封被火毁坏。
A primary analysis for cutting force of the tools and the frictional force in rotating seal ring are also given.
切削刀具的切削力及密封圈回转摩擦力的初步分析计算。
It introduced that combined labyrinth packing and dynamic seal instead primary simple labyrinth packing of mixing blower fan seal on carbonization.
介绍了焦化掺混风机壳体密封由原来简单的迷宫密封改为迷宫密封与气动密封相结合。
Our primary objective is to seal our return to the top flight, but there's still a long way to go.
我们的第一目标是回到榜首，但这仍然有很长的一段路要走。
Our primary objective is to seal our return to the top flight, but there's still a long way to go.
我们的第一目标是回到榜首，但这仍然有很长的一段路要走。
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