Therefore, before the water added to the boiler, the demand through the disposal, to remove the salts, impurities and gas, to supply water to meet water quality requirements.
因而，生水补入锅炉之前，需求通过处置，以除掉其间的盐类、杂质和气体，使补给水水质符合要求。
These may be undesirable for certain water-quality requirements.
这些可能是不可取的，一定水质要求。
It is an effective method to forecast ground water quality, which needs only fewer data and no special requirements for their distribution as well as easily calculates.
建模需要的数据较少，对数据的分布无特殊要求，方法和计算简单，实用价值大，是地面水质预测预报的一种有效方法。
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