我认为它们在次级侧的某些真空阀中有泄漏，这是在布雷德伍德所做的。

It did in Braidwood, from I think they had leakage in some of their vacuum valves on the secondary side.

youdao

这些横膈膜防止了沿着阀杆的泄漏。

These diaphragms prevent leakage along the valve stem.

youdao

阀门的优点：用金属横膈膜代替人造橡胶衬垫在阀门和阀杆的顶部机件处给予了这种阀门出众的泄漏完整性。

Valve Advantages: The replacement of elastomeric packings by metal diaphragms gives this valve superior leak integrity at the top works of the valve and stem.

youdao