Acoustic Containerless Experiment Syst… 
Ada Compiler Evaluation System 
Access Control Entries 
Advanced Concept Ejection Seat 
Acceptance Checkout and Evaluation Sys… 
Acceptance Control Equipment Section 
Acceptance Control Equipment System 
Active Control Evaluation for Spacecra… 
Ada Compiler Evaluation Suite 
Air Collection Engine System 
Asian Cellular Satellite 
Automatic Checkout and Evaluation Syst… 
Automatic Checkout Equipment Sequencer 
Activities for the Changing Earth Syst… 
Ada Compiler Evalutation System 
Adaptation Controlled Environment Syst… 
Advanced Crew Escape Spacesuit 
Aerial Combat Enhanced Simulation 
Alliance for Commercial Enterprises in… 
APEC Cooperation for Earthquake Simula… 
Applied Computation Electromagnetic So… 
Applied Computational Electromagnetics… 
Asia Cellular Satellite System 
Atomic Clocks Ensemble in Space 
Automatic Camera Effects System 
Automatic Control Evaluation Simulator