很多种意思了.但楼主问的可能是美军的“海陆空作战队”.Sea - Air - Land Combat Team.注意：不光是“海陆空”的意思.见下面第一条：
SEAL is short for:
Meaning Category
Sea - Air - Land Combat Team Governmental->Military
Sea Explorer Advanced Leadership Academic & Science->Ocean Science
Service Education And Leadership Community->Educational
Skill Exchange And Learning Community->Educational
Sleep Eat And Lift Business->General
Society For Experimental Arts And Learning Community->Non-Profit Organizations
Submarine Escape Action Levels Governmental->Military
Sulcal Extraction And Labelling Governmental->US Government
Sulcus Extraction and Assisted Labelling Business
