This article has studied the role of clay overburden layer in prevention of contamination from seepage of wastewater ditch to underground water with a analogy method ,and in order to prevent contamination of seepage wastewater, the study defermined the critical thickness of clay overburd layer.
本文通过实际类比的研究方法 ,对粘土覆盖层防治污水明渠渗漏污染地下水的作用进行了探讨 ,并确定了粘土覆盖层防止地面污水渗漏污染地下水所必需的临界厚度范围。
Research for Data Monitoring and Management System of Sewage Flow Measuring in Open Channel
明渠污水流量计量数据监测管理系统的研究
Research on the Data Acuquisition and Processing System of Digital Flow-meter for Open Channal Sewage
数字式明渠污水流量计数据采集处理系统研究
Design of Monitoring Software of Sewage Flow Measurement System in Open Channel
明渠污水智能流量计量系统监测软件设计
connecting drains and sewers clause
接驳排水渠及污水渠条款
Discussion on Using Drainage Pipeline as the Container of Wastewater Treatment
利用下水道管渠处理城市污水的探讨
On treatment of medium and small town sewage based on the sewage pipe channel space
利用污水管渠空间处理中小城镇污水的探讨
In addition to the functions of irrigation and improvement of the city environment,it becomes the passage of flood waters and drainage.
除灌溉和改善城市环境,还与下水明渠沟通,成为城市的防洪和排污通道。
Study on the Organic Pollutants in Drainage Channels in Oilfields
油田开发区排水渠有机污染物的研究
Discussion on engineering design of open channel of general main canal for Phase Ⅰ of Mid-route of South-to-North Water Transfer Project
南水北调中线一期总干渠明渠渠道工程设计有关问题的探讨
The sludge is passed under a vacuum pump and allows the water to pass through a discharge or recirculation drain.
用真空泵除去污泥的固体含量而该泥水则经排水渠或回流渠排出。
Liquid flow measurement in open channels-Float-type water level gauge
GB/T11828-1989明渠水流测量浮子式水位计
Study on "Diversion Angle Effect" of Lateral Intake Flow;
明渠岸边侧向取水的“取水角效应”研究
Study on Hydraulics Characteristics of Flow in Open Channel Consecutive Bends
连续两弯明渠水流特性水槽试验研究
Simulating Study on Using of Sanitary Sewers as Municipal Wastewater Treatment Systems;
利用下水道管渠处理城市污水技术模拟研究
In all, 936 house owners were asked to connect to public sewers.
当局已向合共936名业主发出通知，要求把污水接驳到公共污水渠。
Public sewers are being provided for 38 rural villages and areas that were previously unsewered.
当局正为未有污水设施的38条郊区乡村和地区，提供公共污水渠。
Computing Critical Water Depth of Trapezoid Open Channel by Using Steffensen Iteration Method
用Steffensen迭代法计算梯形明渠的临界水深
A Method for Calculating Critical Water Depth of Open Channel with Trapezoid Section and Smooth Slope
小底坡梯形明渠临界水深求法探讨