70年代初，对其中、下游河段曾进行过渠化治理，但每逢洪水，坍塌毁损工程仍有发生。
The middle and lower reaches of the river have been channelized in the early 1970's, but the events of cave-in and damage still happen wherever there is a flood.
70年代初，对其中、下游河段曾进行过渠化治理，但每逢洪水，坍塌毁损工程仍有发生。
The middle and lower reaches of the river have been channelized in the early 1970's, but the events of cave-in and damage still happen wherever there is a flood.
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