the cardinal number that is the sum of seven and one
例句
Then, as examples, the diary management system, octonary furcated tree method, separating deal of date and time and abnormity check-up system were used in respect region. 如建立日志系统、将八叉树编码方式应用到监测系统测点的编号、建立监测值异常检出系统等，并给出了部分实例。
Keywords OpenGL;virtual NC system;real-time simulation;Octonary Tree Single Ball Compounding Model;collide detection; 数控仿真系统;实时仿真;八叉树单球组合模型;碰撞干涉检验;
Keywords NC virtual reality system;Real-time simulation;Octonary tree single ball compounding mode; 数控仿真系统;实时仿真;八叉树单球组合模型;
