Environmental groups had argued that its use offered no meaningful reduction in greenhouse gas emissions - in part because of the vast use of energy and water in the ethanol conversionprocess.
环保团体称玉米乙醇并没有给我们什么有价值的温室气体排放降低，这部分是生产乙醇的能耗和用水过多所致。
2
The practice process of Fuxin city gasconversion is summarized, and some problems for utilization of coalbed methane are discussed.
总结了阜新市城市燃气转换的实践过程，讨论了煤层气利用的若干问题。
3
The new hydro conversion catalyst with double function can be applied in hydrogen production and synthetic ammonia process by refinery gas as feed.