摘要
分析、比较了城市煤气不同气源之间的机会成本，提出资源优质化是行业发展的必然趋势。
This paper analyses and compares their opportunity costs of the various sources of city gas in recent civil circumstance, and consults the inevitable trend of improving the quality of the source.
出处
《煤气与热力》
2000年第1期38-39,64,共3页
Gas & Heat
关键词
城市煤气
替代分析
机会成本
city gas
replacing competition analysis
opport unity cost
