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广东省航道局经过3年的调研、搜集资料、分析论证,在广泛征求航道辖区有关部门和地方政府意见的基础上,前不久完成了全省1～7级航道的技
After three years of research, Guangdong Provincial Waterway Bureau collected data, analyzed and argued that on the basis of extensively soliciting opinions from relevant departments of the waterway jurisdiction and the opinions of local governments, the technology of Grade 1 to Grade 7 waterways in the province was recently completed