The signal injection method is widely used for automatic selecting fault line in indirectly earthed power system, which has great effect in the system of single-phase ground fault.
注入信号法是一种效果较好的选线方法，其原理广泛应用于小电流接地系统单相接地故障的自动选线。
The system can carry out the automatic and real-time data acquisition of injection molding, and data processing and analyzing by the computer.
该系统实现了注射成型过程的多信号自动、实时测试，并能通过计算机对数据进行处理与分析。
An automatic control system for chemical injection into feed water is designed, using KMM single loop programmable controller.
设计了给水加药自动调节系统，并给出了用KM M单回路可编程调节器实现的方法。
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