求翻译：所以在我国现阶段为此类具有浓度高、成分复杂、色度大、毒性大、难生化降解等特点的废水探寻并优化出一条实际可行的净化处理技术己迫在眉睫。是什么意思？

Therefore, in our country at this stage for such a high concentration, complex composition, chroma, toxic and difficult to biochemical degradation and other characteristics of wastewater to explore and optimize a practical purification technology has been imminent.

It is at this stage in our country for this class has a higher concentration, composition, color, and highly toxic, and difficult to biochemical characteristics such as explore the waste and to optimize a practical purification processing technology and imminent.

Therefore has the density high in our country present stage for this kind, the ingredient complex, the chromaticity big, the toxicity big, characteristic and so on difficult biochemistry degeneration waste water to inquire about and to optimize a feasible purification processing technology oneself t

So, at the present stage in our country for such complex with high concentration, composition, color, such as toxicity, biodegradation characteristics of search and optimization of a practical waste water treatment technology is around the corner.

正在翻译，请等待...