作业帮英语翻译
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英语翻译
英语翻译
英语翻译
Wastewater
废水
Outside of the laboratory there is no such thing as "pure" water.
在实验室之外,没有“纯”水这样的东西.
Even rain water,for example,will take on gases,solid particles and other "impurities" as it falls through the air to the earth.
举例说,即使雨水,当它经过空气落到地面,也会沾上气体、固体颗粒和其他“杂质”.
As water strikes the ground and flows across or through the surface of the earth,as would be expected,it takes on the characteristics of the materials it has encountered.
当水触地及流经或跨越泥土表面,即如所预期的,它会把所遇到物质的特性也带上.
For example,minerals are dissolved and contribute to the dissolved salts that are normally found in waters.
例如,矿物被溶解,并有助于盐被溶解,那些都是在水中常见的.
At the same time organic matter from decomposed vegetation or from the soil,will also dissolve or be carried along within the water.
同时从植物分解或来自土壤中的有机物,也会溶解于水中或被水带上.
Thus,waters will have many natural impurities.
因此,水将有很多天然的杂质.
Generally these impurities do not detract from utilization of the water,e.g.,drinking,washing,etc.
通常使用水,例如饮用、洗涤等,这些杂质不会构成妨碍.
Our main concern will be with waters that have been used by man and then discarded.
我们关注的,主要是人使用后而废弃的水.
While such waters have in the past been commonly referred to as sewage,over the more recent years they have come to be called "Wastewaters".
虽然在过去,上述所指的水都被统称作“污水”,在最近年,这已被称为“废水”.