ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

To meet the needs of modern agricultural machinery management, an agricultural machinery trace monitoring system based on the technology of GPS, GPRS and Google Maps was developed in order to realize the real-time monitoring and scheduling of farm machinery. This system with built-in GPS and GPRS modules, which use wireless network transfer GPS data to remote machine by single-chip microcomputer. With Google Maps API, a Web GIS system was established. An agricultural machinery management by ASP.NET was achieved. Web Service and Ajax technology was used to do such things like trace playback, length measuring, and calculation of land area function.