sealed contacts

英 [siːld ˈkɒntækts]

美 [siːld ˈkɑːntækts]

网络  密封触点

电力

双语例句

• Aerospace relay is a hermetically sealed relay with high requirements on life and reliability, and its life depends greatly on electrical arc characteristics and contacts erosion rate during the opening process.
  航天电磁继电器是可靠性及寿命要求较高的一类密封继电器，其寿命主要取决于分断过程的燃弧特性及电弧对触头的烧蚀特性。