There are two types of central air conditioning systems: Direct Expansion (DX) type of central air condition plants and Chilled Water type of the central air conditioning plants. This article describes the DX central air conditioning system.
Ghostscript is a suite of software based on an interpreter for Adobe Systems' PostScript and Portable Document Format (PDF) page description languages. Its main purposes are the rasterization or rendering of such page description language files, for the display or printing of document pages, and the conversion between PostScript and PDF files.
In this case it concatenates 1  : A directory listed in the section How Ghostscript finds files, except the current directory; 2  The value of the system parameter GenericResourceDir; 3  The name of the resource category (for instance, CMap); 4  The name of the resource instance (for instance, Identity- H)