Warning: file_put_contents(/www/wwwroot/ppbbu/www.30232.com/cache/f145ec13c1909fd04d94f63586b957aa.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/www.30232.com/index.php on line 55 economic useful plant例句_economic useful plant英汉例句_economic useful plant双解例句_绍翊字体网有道词典
The scheme for reforming air preheater and how to reduce the ratio of air leakage are analyzed. it is useful for power plant economic operation. 通过对回转式空气预热器改造的方案及措施分析，阐述了降低预热器漏风率对电厂经济运行所带来的好处。