.. _exhale_define__ifc2x3-definitions_8h_1a9ae30024063d5da351433b578d9075de: Define SCHEMA_IfcMechanicalConcreteMaterialProperties_AdmixturesDescription_IS_OPTIONAL ======================================================================================= - Defined in :ref:`file_src_ifcparse_Ifc2x3-definitions.h` Define Documentation -------------------- .. doxygendefine:: SCHEMA_IfcMechanicalConcreteMaterialProperties_AdmixturesDescription_IS_OPTIONAL