What does HAD stand for?
HAD stands for "Helium Abundance Detector"
How to abbreviate "Helium Abundance Detector"?
"Helium Abundance Detector" can be abbreviated as HAD
What is the meaning of HAD abbreviation?
The meaning of HAD abbreviation is "Helium Abundance Detector"
What does HAD mean?
HAD as abbreviation means "Helium Abundance Detector"
