Scanning Electron Microscopy 
Scanning Electron Microscope 
Space Environment Monitor 
Space Experiment Module 
Scanning Electron Microscopes 
Search Engine Marketing 
Space Environmental Monitor 
singularity-expansion method 
standard error of the mean 
systolic ejection murmur 
Server Enhancement Module 
Shared-Equity Mortgage 
Spare Equipment and Maintenance 
Standard Electronic Module 
Standard Estimating Module 
Strategic Enterprise Management 
System Engineering Management 
System Engineering Manager 
Sample Exchange Mechanism 
scanning electron micrograph 
Secondary Electron Microscopy 
Secure Execution Mode 
Security Event Management 
Seller's Engineering Memorandum 
Seminar 
Singularity Expansion Method 
Space Environment Monitoring 
Spacecraft Equipment Module 
Sql Enterprise Manager 
standard error of mean