Double seals: Material code for the secondary seal is directly followed by the product seal face codes.
注：双端面机械密封的型号表示方法为：在产品型号规格的后面书写两组材料代号，用横线相连。
They are designed to provide a secondary seal in the event the cylinder valve develops leakage through the valve seat.
它们是设计用来在钢瓶阀门通过阀座产生泄漏的情况下提供一个二次密封。
To study the influence of O-rings secondary seals, deformation behaviors of mechanical seal faces were analyzed under different pressures with the method of integral contact analysis by FEM.
采用整体接触有限单元法，考虑“O”型辅助密封圈的影响，计算了不同压力下机械密封端面变形行为。
In the stability analysis of this vibration, the influence of different face configurations, stiffness of the springs supporting the floated ring and damping of the secondary seal are presented.
在其稳定性分析中给出了不同端面结构、浮环支撑弹簧和二次密封阻尼等的影响。
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 backup seal is secondary to the main stem seal assembly (20) in the bonnet (12).
备用密封件是阀帽(12)内主阀杆密封组件(20)的二级密封。
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。
The current efficiency during charging is important for the seal of nickel-metal hydride secondary battery and the saving of energy.
镍氢电池负极用贮氢合金电极材料的充电电流效率对电池的密封以及能源节约都具有重要的意义。
Only by controlling fairly the hole spacing, secondary grouting time interval, number of secondary grouting and seal arou…
要提高施工工艺水平，应掌握好布孔间距、复灌间隔时间、复灌次数及注浆管周围封堵等环节。
Only by controlling fairly the hole spacing, secondary grouting time interval, number of secondary grouting and seal around grouting pipe can the...
要提高施工工艺水平，应掌握好布孔间距、复灌间隔时间、复灌次数及注浆管周围封堵等环节。
Only by controlling fairly the hole spacing, secondary grouting time interval, number of secondary grouting and seal around gro...
要提高施工工艺水平，应掌握好布孔间距、复灌间隔时间、复灌次数及注浆管周围封堵等环节。
Only by controlling fairly the hole spacing, secondary grouting time interval, number of secondary grouting and seal around gro...
要提高施工工艺水平，应掌握好布孔间距、复灌间隔时间、复灌次数及注浆管周围封堵等环节。
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