What does PB stand for?

PB stands for "Preburner (P/B Preferred)"

How to abbreviate "Preburner (P/B Preferred)"?

"Preburner (P/B Preferred)" can be abbreviated as PB

What is the meaning of PB abbreviation?

The meaning of PB abbreviation is "Preburner (P/B Preferred)"

What does PB mean?

PB as abbreviation means "Preburner (P/B Preferred)"