location identification短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 位置标识 In the whole location identification system, the underground part is the main body. The RFID system and CAN-485 network are designed and completed through two aspects- hardware and software. 本文以井下系统为开发主体，分别从硬件和软件两大方面入手，完成了射频识别系统的设计开发和总线通讯网络的组织架构。 fabiao