https://patents.google.com/patent/CN103104721B/en
CN103104721B - Water-air interstage valve - Google Patents
A water-gas linkage valve, including a water valve, a linkage valve and a Venturi differential pressure pipe, the water valve and the linkage valve together...
waterairvalvegooglepatents
https://www.nasa.gov/image-article/worm-logo-interstage-segment-of-space-launch-system/
"Worm" Logo on the Interstage Segment of the Space Launch System - NASA
The NASA logotype, or "worm" logo, is seen on the interstage segment of the Space Launch System.
space launch systemon thewormlogo