说明：  这是个实景开发组件,（A3DEngine)，是基于OpenGL和VC6.0的标准ActiveX控件，可以容易的嵌入到开发的系统中使系统具有显示,
(This is a real development components (A3DEngine) OpenGL is based on the standards and VC6.0 ActiveX controls, can be easily embedded into the development of the system convinces system,)