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论述了带式输送机保护装置的技术现状，并提出了改进和提高各种传感器的结构和灵敏度及电控系统元件的可靠性是保护装置的未来发展方向
The status quo of the protection technology of the belt conveyor is discussed and the future development of the protection device is proposed to improve and enhance the structure and sensitivity of various sensors and the reliability of the electronic control system components