This paper introduces the Siemens S7-200 PLC controller, expounds the design of the information collection, and discusses on the automatic water drainage system.
介绍了西门子s7—200P LC控制器，阐述了信息采集过程，论述了自动排水系统的设计。
In this paper, a city in northern China in an area the status of drainage systems and drainage systems in the geographic information system needs analysis.
本文研究了华北某城市某地区排水系统现状，并对该排水系统进行地理信息系统需求分析。
It has an important practical significance in offering essential information and data for the decision-maker with recognition and classification the drainage system from the image of remote sensing.
对各种遥感影象的水系加以识别和分类，为决策者提供必要的信息和数据，具有重要的现实意义。
It has an important practical significance in offering essential information and data for the decision-maker with recognition and classification the drainage system from the image of remote sensing.
对各种遥感影象的水系加以识别和分类，为决策者提供必要的信息和数据，具有重要的现实意义。
应用推荐