Economic, ecology and society benefits of improves technology and measurement were prominent approved by experiment and study, and it had significance of directing practical production.
经实验研究，各改造技术措施的经济效益、生态效益和社会效益效果明显，有指导生产的实际意义。
Economic, ecology and society benefits of improves technology and measurement were prominent approved by experiment and study, and it had significance of directing practical production.
经实验研究，各改造技术措施的经济效益、生态效益和社会效益效果明显，有指导生产的实际意义。
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