The workmen excavated a hole in the wall to let the sewage pipe pass through.

工人们在墙上掘了个洞让污管通过。

The field trials indicate that the demulsifier chemical can effectively demulsify c...

应用除油剂除油后的污注指标,直接经济效益显著。

We shall have to dig under the river to lay the sewage pipe.

"为了铺设污管道,我们必须在河床下面开一条通道。"

Just before an election, politicians really start to sling mud at each other.

大选前夕，政客们开始互相泼污。

By pre aeration in tanyard wastewater, the effect of primary settling improves obviously.

制革污采用预曝气处理后，可大大提高初沉池沉淀效果。

The sewage pipes were choked with rubbish.

垃圾阻塞了污管道。

They city needs a new sewage disposal system.

这个城需要一套新的污处理系统。

The discharge of hold-washings and other residues by vessels carrying noxious or corrosive goods must be conducted in compliance with the state provisions for vessel sewage discharge and shall be truthfully recorded in the logbook.

载运有毒、含腐蚀性货物的船舶，排放洗仓和其他残余物，必须按照国家有关船舶污排放的规定进行，并如实地记入航海日志。

The experimentation inspected the infection of hydraulic load, organic load, ammonic nitrogen load, the ratio of gas and water, the height of filling to removal efficiency of COD and ammonic nitrogen.

本试验以自配生活污为试验用,考察了力负荷、进有机负荷和氨氮负荷、气比、填料层高度对曝气生物滤池处理COD和氨氮效果的影响。

The system not only can be applied in the treatment of electroplate acidulated sewage but also in the effective measurement and control of acidulated sewage and sewage containing other pe...

本系统不仅能对电镀含酸污进行处理，对其它行业的含磁污或含有其它有害成份的污也能进行有效测量和控制。

The species of microzoon observed in oxidation ditch have totalled 56 kinds since Handan WWTP operation, and the paper supplies dominant species of microzoon in ditch under normal operation.

本文总结了邯污处理厂氧化沟工艺自运行以来沟中所出现的微型生物共计56种,并提供了正常运行条件下,微型生物的优势种群。

The method for determine sewage's chroma is method of dilution multiple.It's easy to bring in error when using eyes to determine the diluted sample is whether achromatism or not.

污色度的测定一般采用稀释倍数法,该方法在用人眼判定稀释后的样是否接近无色时容易引起误差。

The drawing method for the double channel impeller is studied.It is found that there is an in-conformity between the dimensions of plane-view and pinacoid-view of fluid cross-section.

摘要研究了双流道污泵叶轮常用的图纸表方法，发现平面图上的断面投影结果与轴面图中确定的断面形状尺寸不一致的问题。

The corrosion mechanism of sulphureous sewage was analyzed. The process condition for corrosion-proof construction was recommended. The safe operation measure of sulphureous sewage tank was proposed.

分析了含硫污的腐蚀机理,介绍了防腐施工的工艺条件,提出了含硫污罐的安全运行措施。

Bio - degradation role of aerobiotic organic substance and relationships between biological degradation and dissolved oxygen were stated, which provided theoretical basis for waste water reatment.

本文论述了需氧有机物的生物降解作用以及与溶解氧平衡的关系,从而为污治理提供理论依据。

This article mainly designed one kind to use composition and so on PLC and flowmeter, PH idea, thermometer and liquidometer industrial sewage processing control systems.

本文主要设计了一种利用PLC与流量计、PH计、温度计和液位计等组成的工业PH计 污处理控制系统。

The working mechanism and the structural characteristics of KMLZ slant narrow flow deoiler for settled slag and its application in treating industrial sewage are described.

介绍了KMLZ斜窄流沉渣除油器的工作原理、结构特征及其在工业污中的应用。

To carry out a method of tracing and investigation against the industrial sewage directly discharged into rivers so as to search the main pollutive source.

对直接排入河道的工业污来源采取追踪调查的方法，寻找主要污染源。

Coking residuary water contains phenol and cyanogens, which contaminate water source badly. Therefore, the coking residuary water has to be dealt with and discharged.

焦化含酚、氰污的来源很广,对源污染严重,焦化污必须加以处理,合格后才能排放。

Jolley(1993)is a study of dissolved phosphorus speciation in the lower molongolo sewage treatment plant(Canberra, Australia)detected no triphosphate in raw sewage entering the plant.

Jolley(1993)进行得一项研究中在溶解磷形态下molongolo污处理厂（堪培拉，澳大利亚）未发现任何未经处理得污中有三磷酸盐进入工厂。