characteristicaladj.... 特征的characteristicn.特点；特性；特色adj.典型的；特有的characteristic methods特征线法characteristic regions特征区域characteristic service特色服务Characteristic factors特征因素集characteristic of mate结伴性characteristic indexes特征指标characteristic symptom[医] 特征性症状, 特殊症状Characteristics of WSN无线传感器网络特征信息characteristics of ore矿石性质characteristic of pain疼痛性质

1. The paper derives out the proper power supply voltage of city road lighting according to the illuminance and life span character at different voltage level.
   摘要根据路灯在不同电压下的照度及寿命特性，推导出城市道路照明灯具的最佳供电电压。