The key to treating waste water of polyester production is to control the source discharge and reduce the abnormal pollutant.
聚酯生产的废水处理关键是要控制源头排放，减少非正常的污染物。
We can add our hardware fund for this abnormal situation, but it is not a good idea, because it is waste of money for ordinary dates.
对于这种情况，我们不能为了一个不经常出现的用户数量，而增加系统的硬件设备，因为这对平时的正常情况来说是一个浪费。
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