What does PY stand for?
PY stands for "Percus-Yevick"
How to abbreviate "Percus-Yevick"?
"Percus-Yevick" can be abbreviated as PY
What is the meaning of PY abbreviation?
The meaning of PY abbreviation is "Percus-Yevick"
What does PY mean?
PY as abbreviation means "Percus-Yevick"
