What does HDt stand for?
HDt stands for "half-disappearance time"
How to abbreviate "half-disappearance time"?
"half-disappearance time" can be abbreviated as HDt
What is the meaning of HDt abbreviation?
The meaning of HDt abbreviation is "half-disappearance time"
What does HDt mean?
HDt as abbreviation means "half-disappearance time"
