value
value: string
StaticEXTERNALCOMBUSTION
EXTERNALCOMBUSTION: string = 'EXTERNALCOMBUSTION'
StaticINTERNALCOMBUSTION
INTERNALCOMBUSTION: string = 'INTERNALCOMBUSTION'
StaticNOTDEFINED
NOTDEFINED: string = 'NOTDEFINED'
StaticUSERDEFINED
USERDEFINED: string = 'USERDEFINED'