Data Acquisition System 
Data Assimilation System 
Directory Assistance System 
Dual Attachment Station 
Directory Assistance Service 
Data Acquisition Subsystem 
Data Analysis System 
Decimal Adjust for Subtraction 
Defensive Aids Suites 
Department of Administrative Services 
Direct Attached Storage 
Defense Attache System 
Demand Access System 
Direct Air Support 
Director of the Army Staff 
Dual Attached Station 
Data Archive System 
data-assimilation system 
Date Arrived Station 
Deep Air Support 
Delivered Alongside Ship 
dendrite arm spacing 
Designated Alteration Station 
Digital Avionics System 
Documentation Accountability Sheet 
double antibody sandwich 
dynamic angle spinning 
Data Acquisition Segment 
Data Acquisition Systems 
Data Analysis Station