本文提出在大型机械式挖掘机的提升电流信号回路中，增加继电器调节环节的方法求得提升力与推压力的合理匹配。
It is proposed in this paper that a relay regulating loop be added in the hoist current signal of large power shovel so that rational coordination between hoist and crowd capacities can be obtained.
采样机采样间隔时间通过时间继电器来调节。
探讨了间歇刮水继电器和电子调节器的测控原理与计算机测控系统的软件和硬件结构。
This paper probes into the observe and control principles of wiper intermittent relay and electronic regulator and the structure of software and hardware of computer observe and control system.
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