What is MNT in engineering?

Excuse me, but could you clarify something for me? I'm a bit puzzled about the term "MNT" in the context of engineering. Could you possibly elaborate on what it stands for and its significance in the field? I'm quite curious to understand its applications and how it might impact various engineering disciplines. Your explanation would be greatly appreciated. I'm trying to broaden my knowledge in this area, and your insights would be invaluable. Thank you in advance for taking the time to assist me.