英语翻译However,many relay users choose not to implement program
英语翻译 However,many relay users choose not to implement programmable controller-based controls because they are comfortable with their existing relay-based control system.Other relay users may be satisfied with the performance of relays because their plant production requirements are stable and are not severely affected by downtime in their plant.These users choose not to change what they believe is an already good system.Many other factors influence the decision to choose relays over a programmable controller,including the belief that relays are less expensive.Where the initial cost of relays may in some cases be less,the limitations of electromechanical control far outweigh this benefit in most applications. 请不要用有道那些翻译软件翻译了 relay翻译为中间继电器 programmable controller翻译为可编程控制器