提出了进行大型工业化生产的可行性和必要性。
The feasibility and necessity to carry out large-scale industrial test pointed out.
本文论证了该地区风能资源开发的可行性和必要性。
This paper expounds feasibility and necessity of the exploitation of the wind energy resources in this district.
指出了生物质废弃物液化转化燃油技术的可行性和必要性；
This article pointed out the feasibility and necessity of biomass waste conversion to liquid fuel technology.
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