英语翻译1.Floods disrupt normal drainage system in cities and ty

英语翻译
1.Floods disrupt normal drainage system in cities and typically overwhelm sewer systems.Thus,raw or partially raw sewage spills are common in flooded area.Additionally,（if the flood is severe enough）,destruction of building（ that can contain a large array of toxic materials） can cause the release of these materials into the local environment,which leads to severe environment pollution.
2.The zone of saturation is the area of soil and rock （whose pore spaces are completely filled with water）,and which is entirely devoid of soil air.This zone is technically termed ground water （even though the term broadly includes water in the zone of aeration）.
3.Drip irrigation,（also known as trickle irrigation）,functions as its name suggests.Water is delivered at or near the root zone of plants,drop by drop.This method can be the most water-efficient method of irrigation,if managed properly,（since evaporation and runoff are minimized）.In modern agriculture,drip irrigation is often combined with plastic mulch,further reducing evaporation,and is also the means of delivery of fertilizer.The process is known as fertigation.
4.Reservoir,（designed for one purpose,incidentally serving other purposes）,shall not be called a multipurpose reservoir,（but will be called so,only if designed to serve those purposes also in addition to its main purpose）.
5.The most important of forces on dams are （gravity,hydrostatic pressure,uplift,ice pressure,and earthquake forces）.These forces are transmitted to the foundation and abutments of the dam,which react against the dam （with an equal and opposite force）,the foundation reaction.

1.洪水破坏正常的城市排水系统,通常会使排水系统不堪重负.因此,生的或部分未经处理的污水泄漏在水淹地区很常见.此外,(如果洪水足够严重),破坏建筑(也可以包含一系列大型的有毒物质)会导致这些材料到当地环境的释放,导致严重的环境污染.
　　2.饱和区是区域土壤和岩石的孔隙空间是完全装满水),
　　3.滴灌,(也称为滴灌系统),功能顾名思义.水是交货或植物的根区附近,一滴一滴地.这种方法可能是最节水的灌溉方法,如果管理得当,(因为蒸发和径流是最小化).在现代农业、滴灌通常是结合塑料地膜,进一步减少蒸发,也是化肥的运载工具.这一过程被称为灌溉施肥.
4.水库(为一个目的而设计的,顺便为其他用途),不得称为多用途水库,(但会这么叫,只有设计也为这些目的除了其主要目的).
5.最重要的力量在大坝(重力、静水压力、隆起、冰压力,和地震力).这些力量是传播的基础和基大坝,反对大坝的(有一个与它相等且相反的反力),反应的基础.