Various enums from other internal code that are exposed for use in service interfaces.

Enumerations

	Enumeration	Description
	DT_AREA_UNITS
	DT_DENSITY_UNITS
	DT_FLOW_UNITS
	DT_LENGTH_UNITS
	DT_POWER_UNITS
	DT_PUNITS
	DT_THRUST_LEN_UNITS
	DT_TUNITS
	DT_UNITS
	DT_VELOCITY_UNITS
	DT_VISCOSITY_UNITS
	MOTORMETHOD