Question

哪位大侠帮忙给我翻译下 感激不尽 高分了

这个是我论文的摘要 但是我英语实在太差了 所以上来找人帮帮忙中文翻译成英文 哪位大侠帮帮忙 用金山快译的就别来了 我自己也会 有的话再追加分 在线等 谢谢了
随着我国社会经济的发展，人们生活水平的不断提高，城市建设发展十分迅速，同时也对基础设施建设提出了更高的要求。城市供水系统的建设是其中的一个重要方面，供水的可靠性、稳定性、经济性直接影响到用户的正常工作和生活，也直接体现了供水管理水平的高低。
针对供水系统需降低水泵的能耗和维护成本等问题，本设计以生活小区的恒压供水系统为例，设计了一种基于变频器、PLC和压力传感器的恒压供水系统。在此系统中， PLC 将压力设定值与测量值的偏差经PID 运算后得到的控制量作用到变频器， 从而通过变频器控制水泵的转速调节管网的压力，实现恒压供水的目的。
本文介绍了恒压供水的基本原理以及系统构成的基础，说明了可编程控制器（PLC）在恒压供水系统中所担任的角色。从系统的整体设计方案和实际需求分析开始，紧密的联系实际生活的需要，力求做到使系统运行稳定，操作简便，解决实际中问题，保证供水安全、快捷、可靠。恒压供水保证了供水质量，以PLC为主机的控制系统丰富了系统的控制功能，提高了系统的可靠性。
关键字: 恒压供水；PLC；变频器

Answer 1

As China's social and economic development, the continuous improvement of people's living standard, urban construction developed rapidly, but also the construction of infrastructure on a higher demand. The construction of urban water supply system is an important aspect of water supply reliability, stability, economy directly affect the user's normal work and life, but also directly reflects the level of water supply management.
The need for the water supply system to reduce pump power consumption and maintenance costs and other issues, the design of residential life as an example of the constant pressure water supply system was designed based on inverter, PLC, and the constant pressure water supply pressure sensor system. In this system, PLC will set the value of the pressure measurement error by the PID control after computing the volume of the role of the inverter, which pumps through the inverter speed control network regulating the pressure of constant pressure water supply to achieve the purpose of .
This paper introduces the basic principles of constant pressure water supply system constitutes the basis, as well as on the programmable logic controller (PLC) in the constant pressure water supply system in the role. From the system's overall design and analysis of the actual needs of the beginning, close links the needs of real life, and strive to make sure that the system is running stable, easy to operate, to solve real problems, and ensure the water supply safe, efficient and reliable. Constant pressure water supply to ensure the quality of the water supply to PLC control system for a rich host of control functions of the system to improve the reliability of the system.
Keywords: constant pressure water supply; PLC; inverter

Answer 2

This article introduced the constant pressure water supply's basic principle as well as the system constitution's foundation, showed the programmable controller (PLC) the role which holds the post in the constant pressure water supply system. Start from system's overall design plan and the energy demand analysis, the close relation practical life's need, makes every effort to achieve causes the systems operation to be stable, the operation is simple, the solution real issue, the guarantee water supply security, is quick, is reliable. The constant pressure water supply had guaranteed the water supply quality, as main engine's control system has enriched system's control function take PLC, enhanced system's reliability.

听我的，他们的这么长，你那中文那么短，这么可能！！！

Answer 3

As China's social and economic development, the continuous improvement of people's living standard, urban construction developed rapidly, but also the construction of infrastructure on a higher demand. The construction of urban water supply system is an important aspect of water supply reliability, stability, economy directly affect the user's normal work and life, but also directly reflects the level of water supply management.
The need for the water supply system to reduce pump power consumption and maintenance costs and other issues, the design of residential life as an example of the constant pressure water supply system was designed based on inverter, PLC, and the constant pressure water supply pressure sensor system. In this system, PLC will set the value of the pressure measurement error by the PID control after computing the volume of the role of the inverter, which pumps through the inverter speed control network regulating the pressure of constant pressure water supply to achieve the purpose of .
This paper introduces the basic principles of constant pressure water supply system constitutes the basis, as well as on the programmable logic PLC in the constant pressure water supply system in the role. From the system's overall design and analysis of the actual needs of the beginning, close links the needs of real life, and strive to make sure that the system is running stable, easy to operate, to solve real problems, and ensure the water supply safe, efficient and reliable. Constant pressure water supply to ensure the quality of the water supply to PLC control system for a rich host of control functions of the system to improve the reliability of the system

Answer 4

With China's social and economic development, the improvement of people's living standard, the urban construction, developing very rapidly, and also for infrastructure construction and puts forward a higher request. The construction of urban water supply system is one of the important aspects of water supply, the reliability and stability and economy directly affects the normal work and life of the user, also directly reflects the supply management level.
For water supply system to reduce the energy consumption and maintenance cost, water pump, the design of the residential district with constant pressure water supply system, for example, a method based on PLC and inverter, the constant pressure water supply pressure sensor system. In this system, the PLC and the measured value will pressure the PID arithmetic value deviation of control effect to the inverter, and through the speed regulation control pump frequency of pressure pipeline, realize the goal of constant pressure water supply.
The paper introduces the basic principle of constant pressure water supply system, and illustrates the programmable logic controller (PLC) in the constant pressure water supply system in the role. From the overall design scheme of system and the actual requirement analysis, closely linked to the actual life, make the system runs stably, simple operation, and solve practical problems, ensure the safe supply, fast and reliable. Constant pressure water supply, water quality to guarantee for the host of PLC control system, the control system was rich function, improve the reliability of system.