National Door Service can supply and install a wide variety of door systems that are uniquely suited to a client's specific needs and budget, including: Sliding hangar doors (Andrews AFB); Vertical lift doors; Bi-fold doors (York PA); Rolling steel doors; Sectional doors; Fire rated doors; Fabric doors (US Naval Academy, MD); One piece tail doors (Andrews AFB); and Inflatable Aperture Door Seal (Dover AFB, DE).
What does AD stand for?
AD stands for Aperture Door
This definition appears frequently and is found in the following Acronym Finder categories:
- Information technology (IT) and computers
See other definitions of AD
We have 84 other meanings of AD in our Acronym Attic
- Ante Diem
- Antidumping Duty
- Antimatter Decelerator
- Antonio Davis
- Aperture Card Diazo
Samples in periodicals archive:
Two of them were ready to jump into spacewalking action one last time if the telescope's aperture door had not opened telescope on Tuesday morning or some other last-minute problem cropped up.
Teams on the ground will then command open the telescope's aperture door, a large shutter that protects Hubble's primary and secondary mirrors.