求翻译：随着国内PVC产能的不断扩大，其污染物排放总量也将持续增加，对环境的影响问题日益突出，因此，解决该类废水，尤其是难于生化降解的聚合母液废水的无害化处理成为PVC行业清洁生产的又一个关键点，是支持我国PVC产业健康、持续、稳定发展的一个重要环节，对实现节能减排目标具有积极的意义。是什么意思？

With the expanding domestic pvc production capacity, the total discharge of pollutants will continue to impact on the environment have become increasingly prominent, therefore, to solve this kind of wastewater, in particular, is difficult to biochemical degradation of the polymer mother liquor waste

As the domestic PVC production continues to expand, its total discharge of pollutants will also continue to increase, the effects on the environment has become an increasingly prominent issue, therefore, the solution to the waste water in particular, bio-degradable and difficult to aggregate the mot

Produces along with domestic PVC can the unceasing expansion, its pollutant emissions total quantity continually will also increase, the influence question will be day by day prominent to the environment, therefore, will solve this kind of waste water, difficulty with the biochemistry will degrade i

As domestic PVC capacity of constantly expanded, its pollutants emissions total also will continued increased, on environment of effect problem increasingly highlight, so, solution the class wastewater, especially difficult to biochemical degradation of aggregate mother liquor wastewater of harmless