负遮盖 meaning in Chinese

under lap

Second , pid arithmetic that is proved to be mature and have excellent performance by practical application is adopted to deal with various problems which hydraulic proportional system could meet with . in practical control , data acquisition & control card made by advantech co . , ltd acts as key element to deal data . this hydraulic - mechanic system integrates the computer technique , hydraulic proportional control and data acquisition technique
在控制算法方面，采用在工业实际应用中已经成熟的、在实际应用中经过验证具有优越性能的pid算法为基本控制算法来处理该液压比例系统所遇到的各种问题(如阀开口为负遮盖引起的死区问题和系统控制的稳定性问题) ；对于实际的控制，采用集数据采集与控制于一体的研华数据采集控制卡作为核心元件，从而在理论上研究并在实际应用中能体现出该液压比例控制系统的基本性能。