Through many years of practice, the environmental protection industry market has been produced in Shaanxi.
陕西环保产业经过多年的摸索和实践，已逐渐形成了具有本省地方特色的产业市场。
Through many years practice, we have got some of the experience.
我们针对这一问题进行了多年实践，取得了一定的经验。
It has favorable effect through the practice and exploration of several years.
经过多年的实践和探索，收到了良好的效果。
It has favorable effect through the practice and exploration of several years.
经过多年的实践和探索，收到了良好的效果。
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