Purification treatment should be effected by projects whose discharges prescribed standards, and which have already gone into operation, or been put to use;

已建成投入生产或者使用的超过排放标准的项目，应当进行净化处理；

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The results showed the existence of the flaw would not effected the safe operation of the piping.

结果表明，焊缝存在的未焊透缺陷不影响管道的安全运行。

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BF iron notch splash is a general problem on new BF built recently, not only operation is effected but also economy is greatly lost.

高炉铁口喷溅是近年新建高炉的共性问题，不仅影响高炉的正常操作，而且还会造成较大的经济损失。

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