Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/293939f2ef4ca65534e72d9b38ff18a5.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 economic useful plant例句_economic useful plant英汉例句_economic useful plant双解例句_果味酸柯林斯词典
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. 通過對廻轉式空氣預熱器改造的方案及措施分析，闡述了降低預熱器漏風率對電廠經濟運行所帶來的好処。