What does O2L stand for?

O2L stands for "Oxygen level in 'spacecraft, spacelab:"

How to abbreviate "Oxygen level in 'spacecraft, spacelab:"?

"Oxygen level in 'spacecraft, spacelab:" can be abbreviated as O2L

What is the meaning of O2L abbreviation?

The meaning of O2L abbreviation is "Oxygen level in 'spacecraft, spacelab:"

What does O2L mean?

O2L as abbreviation means "Oxygen level in 'spacecraft, spacelab:"