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MS Symptoms Early

Acronym: HAC

Category: NASA Acronyms

Meaning / Stands for:

	Acronym	Meaning
	MCW	Modulated Continuous Wave
	OPIS	Orbiter Prime Item Specification
	DIH	Discrete Input High
	MODS	Modifications
	D&O	DescriPtion And Operations
	SMR	Source, Maintenance, And Recoverability
	SPTD	Supplemental Provisioning Technical Documentation
	TRB	Technical Review Board
	CSDD	Control Systems DeveloPment Division (JSC)
	SOV	Shut-off Valve