求翻译：上世纪90年代之后，水企业工程中，先后设置了PID调节、比值、前馈、后馈、FCS、DCS和最初的以太网技术，经历了几次重大的变革，自动化水平有了较大的提高。但是，成千上万件的现场设备还是处在“孤岛”状态，独立于自动化系统之外，瓶颈问题到处存在，上面管理决策部门对各水厂车间的工艺流程的生产状态不能在线获取。供应链营销服务、管网监测都在脱节状态下生存。是什么意思？

In the 1990s, the water company project, has set up a PID regulator, ratio, feedforward, after the feed, FCS, DCS, and the original Ethernet technology, has undergone several major changes, with greater automation the increase. However, tens of thousands of pieces of equipment or in the field "islan

In the 1990s, the water enterprise engineering, he set up the PID regulating, 74.2 , after giving feedback, before giving feedback, FCS DCS , and initially the Ethernet technology, has experienced several major changes, level of automation has been enhanced. However, 60% on 1000 10,000 pieces of equ

After on century 90's, in the water enterprise project, afte

After the last century 90 's, water project, has set the PID tuning, the ratio of feed, feed-forward, back, and FCS, DCS and original Ethernet technology, has undergone several important changes, automation level has been enhanced. However, thousands of field equipment is still in "isolated island"