求翻译：对那些污染较重，耗能较高的企业实行了限期整改或关停，外加企业破产和转产使企业排污量连年下降，导致鸭绿江水系的水质明显好转。是什么意思？

For those with serious pollution, high energy consumption enterprises to implement a deadline for rectification or shut down, plus corporate bankruptcies and converting the emissions declined year by year, resulting in significant improvement in water quality of the Yalu River.

正在翻译，请等待...

Was heavy to these pollution, consumes energy the high enterprise to implement has reorganized by a set time or closes down, the sur- enterprise went bankrupt and produces a different product causes the enterprise pollution discharge quantity successive years to drop, causes the Yalu River river sys

For those more polluting heavy, imposed a deadline for rectification and reform in higher energy consumption enterprises or shut down, plus enterprise bankruptcy and transferring to the enterprise emissions continue to decline, leading to Yalu River system water quality improved markedly.

For those more polluting heavy, imposed a deadline for rectification and reform in higher energy consumption enterprises or shut down, plus enterprise bankruptcy and transferring to the enterprise emissions continue to decline, leading to Yalu River system water quality improved markedly.