1·A new technology, substituting three axis for four axis manufacturing by using subarea manufacturing is offered and manufacture successfully the rolling forging die for enterprise.
采用分区加工的方法实现了三轴加工替代四轴加工新方法，并成功地为企业加工出了合格的滚压模具。
2·ASTR combines the merits of proactive routing protocol and on-demand routing protocol because subarea tree has the function of routing selection.
由于分区树具有路由选择功能，所以ASTR结合了先应式路由协议和按需路由协议的优点。
3·Traditionally, subarea load forecasting divides the area by the administrative region directly, without considering that the features of load increasing has great difference even in the same region.
分区负荷预测通常直接按行政区域划分预测区域，没有考虑同一行政区内可能存在电力负荷增长规律有较大差异的情况。
4·At last the path planning method, subarea zigzag, contour offset path and combination of them used in PDM and the path generation are described.
阐述了在PD M中采用的路径规划方式，分区折线、轮廓等距偏移和两者的复合方式，并说明了其路径的生成方法。
5·The principle for GPRS network subarea design is described firstly. The type and influence of RA updating is analysed.
本文首先介绍了GPRS网的分区原则，分析了路由更新的类型和影响。