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site disturbance
相关语句
  现场干扰
     And now the data communication network developed solves the problems of the data lose and the site disturbance.
     我们研制的数据通讯网络解决了数据丢失和现场干扰等问题。
短句来源
  相似匹配句对
     THE ANASTOMOTIC SITE EMPTYING DISTURBANCE AFTER SUBTOTAL GASTRECTOMY
     胃大部切除术后吻合口排空障碍15例分析
短句来源
     Building on the Site
     基地中的建筑
短句来源
     Building Site
     建筑工地
短句来源
     (4)The influence of the disturbance for the lower site quality was more significant.
     (4)同样的干扰强度对差的立地条件上群落物种多样性的影响更大。
短句来源
     ON THE DISTURBANCE OF FOREST
     论森林干扰
短句来源
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  site disturbance
Soil compaction and percolation were measured on a 50 m grid, and maps were overlain to determine where site disturbance,buildings, utility lines, paths and pavements had occurred since 1860.
      
Site disturbance effects on a clay soil under radiata pine
      
Comparing the role of site disturbance and landscape properties on understory species richness in fragmented periurban Mediterra
      
Arthropod diversity declined with increasing post-harvest site disturbance.
      
The potential effect of nitrate on raspberry seed dormancy breakage is briefly discussed in relation to site disturbance.
      
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The paper describes the principle and technical key of communication data network for air conditioning automatic control systems.Unable to work properly of the Distributed Computer Systems(DCS)was usually caused by the data communication failure.And now the data communication network developed solves the problems of the data lose and the site disturbance.The network has been used in accurate constant temperature and relative humidity automatic...

The paper describes the principle and technical key of communication data network for air conditioning automatic control systems.Unable to work properly of the Distributed Computer Systems(DCS)was usually caused by the data communication failure.And now the data communication network developed solves the problems of the data lose and the site disturbance.The network has been used in accurate constant temperature and relative humidity automatic control system with monitoring and controlling nine large air conditioning systems successfully in China Precision Engineering Institute for Aircraft Industry.

本文介绍了空调自控数据通讯网络的结构原理和构成网络的技术关键。在计算机集散控制系统中,往往由于数据通讯的失败造成系统瘫痪。我们研制的数据通讯网络解决了数据丢失和现场干扰等问题。此网络已应用于中国航空工业总公司精密机械加工研究所高精度恒温恒湿空调自控系统,实现了该所九个大型空调系统的集中监控。

On the basis of the optimal control theory, the linear optimal excitation controller in Gezhouba Erjiang Hydropower Plant takes active power output, generator terminal voltage and frequency as state variables and the excitation voltage as control variable. For the selection of feedback gain factor, on the basis of simulation calculation by heuristic method the principle selecting feedback gain is discussed in the respects of operating condition of generating sets, the measurement of rotating speed and on-site...

On the basis of the optimal control theory, the linear optimal excitation controller in Gezhouba Erjiang Hydropower Plant takes active power output, generator terminal voltage and frequency as state variables and the excitation voltage as control variable. For the selection of feedback gain factor, on the basis of simulation calculation by heuristic method the principle selecting feedback gain is discussed in the respects of operating condition of generating sets, the measurement of rotating speed and on-site disturbance. Simulation calculation results and on-site tests show that the presented model and optimal feedback gain presented are correct and are beneficial to decrease the amount of load rejection.

葛洲坝二江电厂线性最优励磁控制器以最优控制理论为基础,以机端电压、发电机有功出力和机端电量频率为状态量,以机组励磁电压为控制量。针对反馈增益的选择问题,在运用试探法进行仿真计算的基础上,从机组运行工况、转速测量和现场干扰等方面讨论了反馈增益的选择原则。仿真计算和现场试验表明,所提出的模型和最优反馈增益是正确的,对提高华中电网的电压稳定水平是有益的,可以减少切负荷量。

 
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