What does XMM stand for?

XMM stands for "X-ray Multi Mirror"

How to abbreviate "X-ray Multi Mirror"?

"X-ray Multi Mirror" can be abbreviated as XMM

What is the meaning of XMM abbreviation?

The meaning of XMM abbreviation is "X-ray Multi Mirror"

What does XMM mean?

XMM as abbreviation means "X-ray Multi Mirror"