visual ray可见射线visualadj.视觉的；视力的；看的见的；形象的n.画面；图象Visual Flight Rules Approach目视飞行规则进场Visual Display Research Tool目视显示研究工具Visual Environment Simulation视觉环境仿真Visual Operating Restrictions目视操作限制Visual Mission Accomplishment目视(拦截)任务结束visual aids such as slides.视觉辅助器，如幻灯片visual field axis orientation视野轴方向Visual Information Specialist目视信息专家visual spectroscopic analysis[化] 目视分光镜分析法visual prototyping technology虚拟样机技术