There are two pressure vessels which also serve as support for the beams.
The bundles are submerged in water inside a pressure vessel.
We even got invited to see inside the pressure vessel.
There is no pressure vessel in the ordinary sense of a boiler.
Each combustion zone no longer has to serve as a pressure vessel.
A pressure vessel is a large steel container about 10 inches thick.
This began to boil the water in the pressure vessel.
There is no need for a heavy pressure vessel.
Welding was not yet a developed technology, particularly for a pressure vessel.
Small pressure vessels are normally tested using a water jacket test.
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