ultra-high vacuum

• 超高真空

ultra-high vacuum的用法和样例：

例句

1. CelvasealTM leak sealant is compounded especially forsealing leaks in the high and ultra-high vacuum systems.
   特别应用于高真空和超高真空系统的密封和堵漏。
2. An "isolation" helium reservoir separates the UHV sample space from the dewar vacuum space.
   液氦储存容器隔离了超高真空室和杜瓦真空室。