hermetic seal

常用短語

hermetic seal leakage密封泄漏

hermetic-seal relay封閉型繼電器

hermetic seal furnace氣密封爐

hermetic seal form密封的形式

a hermetic seal熔接密閉

hermetic seal cable密封電纜

hermetic seal machine氣密封機

high pressure hermetic seal加壓密封

inspection of hermetic seal密封檢驗