RS-274X 是RS-274D 的扩展，该文件（一般后缀为GBX,GBR等）是一种脚本文件，它用于指示光绘机进行各种绘制或运动形为。文件中完整的描述了RS-274X文件的所有 规范代码. 对有需要开发相关功能的人员来说很有帮助。(RS-274X is the extension of RS-274D, the file (general suffix GBX, GBR) is a kind of scr ipt file, it is used to indicate the light painting machine for various drawing shape or movement. The file describes the RS-274X file in all the specification of the code, for the need to develop relevant functions of personnel is very helpful.)